BusyBox - The Swiss Army Knife of Embedded Linux
busybox <applet> [arguments...] # or
<applet> [arguments...] # if symlinked
BusyBox combines tiny versions of many common UNIX utilities into a single small
executable. It provides minimalist replacements for most of the utilities you
usually find in GNU coreutils, util-linux, etc. The utilities in BusyBox
generally have fewer options than their full-featured GNU cousins; however,
the options that are included provide the expected functionality and behave
very much like their GNU counterparts.
BusyBox has been written with size-optimization and limited resources in mind.
It is also extremely modular so you can easily include or exclude commands (or
features) at compile time. This makes it easy to customize your embedded
systems. To create a working system, just add /dev, /etc, and a Linux kernel.
BusyBox provides a fairly complete POSIX environment for any small or embedded
system.
BusyBox is extremely configurable. This allows you to include only the
components you need, thereby reducing binary size. Run 'make config' or 'make
menuconfig' to select the functionality that you wish to enable. Then run
'make' to compile BusyBox using your configuration.
After the compile has finished, you should use 'make install' to install
BusyBox. This will install the 'bin/busybox' binary, in the target directory
specified by CONFIG_PREFIX. CONFIG_PREFIX can be set when configuring BusyBox,
or you can specify an alternative location at install time (i.e., with a
command line like 'make CONFIG_PREFIX=/tmp/foo install'). If you enabled any
applet installation scheme (either as symlinks or hardlinks), these will also
be installed in the location pointed to by CONFIG_PREFIX.
BusyBox is a multi-call binary. A multi-call binary is an executable program
that performs the same job as more than one utility program. That means there
is just a single BusyBox binary, but that single binary acts like a large
number of utilities. This allows BusyBox to be smaller since all the built-in
utility programs (we call them applets) can share code for many common
operations.
You can also invoke BusyBox by issuing a command as an argument on the command
line. For example, entering
/bin/busybox ls
will also cause BusyBox to behave as 'ls'.
Of course, adding '/bin/busybox' into every command would be painful. So most
people will invoke BusyBox using links to the BusyBox binary.
For example, entering
ln -s /bin/busybox ls
./ls
will cause BusyBox to behave as 'ls' (if the 'ls' command has been compiled into
BusyBox). Generally speaking, you should never need to make all these links
yourself, as the BusyBox build system will do this for you when you run the
'make install' command.
If you invoke BusyBox with no arguments, it will provide you with a list of the
applets that have been compiled into your BusyBox binary.
Most BusyBox applets support the
--help argument to provide a terse
runtime description of their behavior. If the CONFIG_FEATURE_VERBOSE_USAGE
option has been enabled, more detailed usage information will also be
available.
Currently available applets include:
addgroup, ar, ash, awk, basename, bunzip2, bzip2, cal, cat, catv,
chattr, chgrp, chmod, chown, chroot, chrt, cksum, clear, cmp, comm,
cp, cpio, crontab, cut, dc, dd, delgroup, diff, dirname, dnsd,
dos2unix, du, echo, ed, env, expand, expr, fakeidentd, false,
fatattr, find, flock, fold, fsync, ftpd, ftpget, ftpput, getopt,
grep, groups, gunzip, gzip, hd, head, hexdump, hostid, hostname,
httpd, id, install, iostat, ipcalc, kill, killall, killall5, less,
ln, logger, logname, logread, lpq, lpr, ls, lsof, lspci, lsusb,
lzma, lzop, md5sum, microcom, mkdir, mkfifo, mktemp, more, mpstat,
mv, nc, nice, nohup, od, patch, pgrep, pipe_progress, pkill, pmap,
powertop, printenv, printf, ps, pscan, pstree, pwd, pwdx, readlink,
readprofile, realpath, renice, reset, resize, rev, rm, rmdir, rpm,
rpm2cpio, run-parts, scriptreplay, sed, seq, setsid, sh, sha1sum,
sha256sum, sha3sum, sha512sum, shuf, sleep, smemcap, sort, split,
strings, sum, sync, sysctl, syslogd, tail, tar, tee, telnet,
telnetd, test, tftp, tftpd, timeout, touch, tr, true, truncate, tty,
ttysize, uname, uncompress, unexpand, uniq, unix2dos, unlink,
unlzma, unxz, unzip, usleep, uudecode, uuencode, vi, volname, watch,
wc, wget, which, whoami, xargs, xz, yes
- addgroup
- addgroup [-g GID] [-S] [USER] GROUP
Add a group or add a user to a group
-g GID Group id
-S Create a system group
- ar
- ar [-o] [-v] [-p] [-t] [-x] ARCHIVE FILES
Extract or list FILES from an ar archive
-o Preserve original dates
-p Extract to stdout
-t List
-x Extract
-v Verbose
- ash
- ash [-/+OPTIONS] [-/+o OPT]... [-c 'SCRIPT' [ARG0 [ARGS]] / FILE [ARGS]]
Unix shell interpreter
- awk
- awk [OPTIONS] [AWK_PROGRAM] [FILE]...
-v VAR=VAL Set variable
-F SEP Use SEP as field separator
-f FILE Read program from FILE
-e AWK_PROGRAM
- basename
- basename FILE [SUFFIX]
Strip directory path and .SUFFIX from FILE
- bunzip2
- bunzip2 [-cf] [FILE]...
Decompress FILEs (or stdin)
-c Write to stdout
-f Force
- bzip2
- bzip2 [OPTIONS] [FILE]...
Compress FILEs (or stdin) with bzip2 algorithm
-1..9 Compression level
-d Decompress
-c Write to stdout
-f Force
- cal
- cal [-jy] [[MONTH] YEAR]
Display a calendar
-j Use julian dates
-y Display the entire year
- cat
- cat [FILE]...
Concatenate FILEs and print them to stdout
- catv
- catv [-etv] [FILE]...
Display nonprinting characters as ^x or M-x
-e End each line with $
-t Show tabs as ^I
-v Don't use ^x or M-x escapes
- chattr
- chattr [-R] [-+=AacDdijsStTu] [-v VERSION] [FILE]...
Change ext2 file attributes
Modifiers:n -,+,= Remove/add/set attributes Attributes:n A Don't track
atime a Append mode only c Enable compress D Write dir contents
synchronously d Don't backup with dump i Cannot be modified (immutable)
j Write all data to journal first s Zero disk storage when deleted
S Write synchronously t Disable tail-merging of partial blocks with
other files u Allow file to be undeleted -R Recurse -v VER Set
version/generation number
- chgrp
- chgrp [-RhLHP]... GROUP FILE...
Change the group membership of each FILE to GROUP
-R Recurse
-h Affect symlinks instead of symlink targets
-L Traverse all symlinks to directories
-H Traverse symlinks on command line only
-P Don't traverse symlinks (default)
- chmod
- chmod [-R] MODE[,MODE]... FILE...
Each MODE is one or more of the letters ugoa, one of the symbols +-= and one
or more of the letters rwxst
-R Recurse
- chown
- chown [-Rh]... USER[:[GRP]] FILE...
Change the owner and/or group of each FILE to USER and/or GRP
-R Recurse
-h Affect symlinks instead of symlink targets
- chroot
- chroot NEWROOT [PROG ARGS]
Run PROG with root directory set to NEWROOT
- chrt
- chrt [-prfom] [PRIO] [PID | PROG ARGS]
Change scheduling priority and class for a process
-p Operate on PID
-r Set SCHED_RR class
-f Set SCHED_FIFO class
-o Set SCHED_OTHER class
-m Show min/max priorities
- cksum
- cksum FILES...
Calculate the CRC32 checksums of FILES
- clear
- clear
Clear screen
- cmp
- cmp [-l] [-s] FILE1 [FILE2]
Compare FILE1 with FILE2 (or stdin)
-l Write the byte numbers (decimal) and values (octal)
for all differing bytes
-s Quiet
- comm
- comm [-123] FILE1 FILE2
Compare FILE1 with FILE2
-1 Suppress lines unique to FILE1
-2 Suppress lines unique to FILE2
-3 Suppress lines common to both files
- cp
- cp [OPTIONS] SOURCE... DEST
Copy SOURCE(s) to DEST
-a Same as -dpR
-R,-r Recurse
-d,-P Preserve symlinks (default if -R)
-L Follow all symlinks
-H Follow symlinks on command line
-p Preserve file attributes if possible
-f Overwrite
-i Prompt before overwrite
-l,-s Create (sym)links
-u Copy only newer files
- cpio
- cpio [-dmvu] [-F FILE] [-R USER[:GRP]] [-ti] [EXTR_FILE]...
Extract (-i) or list (-t) files from a cpio archive
Main operation mode:n -t List -i Extract EXTR_FILEs (or all) Options:n
-d Make leading directories -m Preserve mtime -v Verbose -u Overwrite
-F FILE Input (-t,-i,-p) or output (-o) file -R USER[:GRP] Set owner of
created files
- crontab
- crontab [-c DIR] [-u USER] [-ler]|[FILE]
-c Crontab directory
-u User
-l List crontab
-e Edit crontab
-r Delete crontab
FILE Replace crontab by FILE ('-': stdin)
- cut
- cut [OPTIONS] [FILE]...
Print selected fields from each input FILE to stdout
-b LIST Output only bytes from LIST
-c LIST Output only characters from LIST
-d CHAR Use CHAR instead of tab as the field delimiter
-s Output only the lines containing delimiter
-f N Print only these fields
-n Ignored
- dc
- dc EXPRESSION...
Tiny RPN calculator. Operations: +, add, -, sub, *, mul, /, div, %, mod, **,
exp, and, or, not, xor, p - print top of the stack (without popping), f -
print entire stack, o - pop the value and set output radix (must be 10,
16, 8 or 2). Examples: 'dc 2 2 add p' -> 4, 'dc 8 8 mul 2 2 + / p'
-> 16
- dd
- dd [if=FILE] [of=FILE] [ibs=N] [obs=N] [bs=N] [count=N] [skip=N] [seek=N]
[conv=notrunc|noerror|sync|fsync] [iflag=skip_bytes]
Copy a file with converting and formatting
if=FILE Read from FILE instead of stdin
of=FILE Write to FILE instead of stdout
bs=N Read and write N bytes at a time
ibs=N Read N bytes at a time
obs=N Write N bytes at a time
count=N Copy only N input blocks
skip=N Skip N input blocks
seek=N Skip N output blocks
conv=notrunc Don't truncate output file
conv=noerror Continue after read errors
conv=sync Pad blocks with zeros
conv=fsync Physically write data out before finishing
conv=swab Swap every pair of bytes
iflag=skip_bytes skip=N is in bytes
status=noxfer Suppress rate output
status=none Suppress all output
N may be suffixed by c (1), w (2), b (512), kB (1000), k (1024), MB, M, GB,
G
- delgroup
- delgroup [USER] GROUP
Delete group GROUP from the system or user USER from group GROUP
- diff
- diff [-abBdiNqrTstw] [-L LABEL] [-S FILE] [-U LINES] FILE1 FILE2
Compare files line by line and output the differences between them. This
implementation supports unified diffs only.
-a Treat all files as text
-b Ignore changes in the amount of whitespace
-B Ignore changes whose lines are all blank
-d Try hard to find a smaller set of changes
-i Ignore case differences
-L Use LABEL instead of the filename in the unified header
-N Treat absent files as empty
-q Output only whether files differ
-r Recurse
-S Start with FILE when comparing directories
-T Make tabs line up by prefixing a tab when necessary
-s Report when two files are the same
-t Expand tabs to spaces in output
-U Output LINES lines of context
-w Ignore all whitespace
- dirname
- dirname FILENAME
Strip non-directory suffix from FILENAME
- dnsd
- dnsd [-dvs] [-c CONFFILE] [-t TTL_SEC] [-p PORT] [-i ADDR]
Small static DNS server daemon
-c FILE Config file
-t SEC TTL
-p PORT Listen on PORT
-i ADDR Listen on ADDR
-d Daemonize
-v Verbose
-s Send successful replies only. Use this if you want
to use /etc/resolv.conf with two nameserver lines:
nameserver DNSD_SERVER
nameserver NORMAL_DNS_SERVER
- dos2unix
- dos2unix [-ud] [FILE]
Convert FILE in-place from DOS to Unix format. When no file is given, use
stdin/stdout.
-u dos2unix
-d unix2dos
- du
- du [-aHLdclsxhmk] [FILE]...
Summarize disk space used for each FILE and/or directory
-a Show file sizes too
-L Follow all symlinks
-H Follow symlinks on command line
-d N Limit output to directories (and files with -a) of depth < N
-c Show grand total
-l Count sizes many times if hard linked
-s Display only a total for each argument
-x Skip directories on different filesystems
-h Sizes in human readable format (e.g., 1K 243M 2G)
-m Sizes in megabytes
-k Sizes in kilobytes (default)
- echo
- echo [-neE] [ARG]...
Print the specified ARGs to stdout
-n Suppress trailing newline
-e Interpret backslash escapes (i.e., \t=tab)
-E Don't interpret backslash escapes (default)
- ed
- ed
- env
- env [-iu] [-] [name=value]... [PROG ARGS]
Print the current environment or run PROG after setting up the specified
environment
-, -i Start with an empty environment
-u Remove variable from the environment
- expand
- expand [-i] [-t N] [FILE]...
Convert tabs to spaces, writing to stdout
-i,--initial Don't convert tabs after non blanks
-t,--tabs=N Tabstops every N chars
- expr
- expr EXPRESSION
Print the value of EXPRESSION to stdout
EXPRESSION may be:n ARG1 | ARG2 ARG1 if it is neither null nor 0, otherwise
ARG2 ARG1 & ARG2 ARG1 if neither argument is null or 0, otherwise 0
ARG1 < ARG2 1 if ARG1 is less than ARG2, else 0. Similarly: ARG1
<= ARG2 ARG1 = ARG2 ARG1 != ARG2 ARG1 >= ARG2 ARG1 > ARG2
ARG1 + ARG2 Sum of ARG1 and ARG2. Similarly: ARG1 - ARG2 ARG1 * ARG2
ARG1 / ARG2 ARG1 % ARG2 STRING : REGEXP Anchored pattern match of
REGEXP in STRING match STRING REGEXP Same as STRING : REGEXP substr
STRING POS LENGTH Substring of STRING, POS counted from 1 index STRING
CHARS Index in STRING where any CHARS is found, or 0 length
STRING Length of STRING quote TOKEN Interpret TOKEN as a string, even
if it is a keyword like 'match' or an operator like '/'
(EXPRESSION) Value of EXPRESSION
Beware that many operators need to be escaped or quoted for shells.
Comparisons are arithmetic if both ARGs are numbers, else lexicographical.
Pattern matches return the string matched between \( and \) or null; if \(
and \) are not used, they return the number of characters matched or
0.
- fakeidentd
- fakeidentd [-fiw] [-b ADDR] [STRING]
Provide fake ident (auth) service
-f Run in foreground
-i Inetd mode
-w Inetd 'wait' mode
-b ADDR Bind to specified address
STRING Ident answer string (default: nobody)
- fatattr
- fatattr [-+rhsvda] FILE...
Change file attributes on FAT filesystem
- Clear attributes
+ Set attributes
r Read only
h Hidden
s System
v Volume label
d Directory
a Archive
- find
- find [-HL] [PATH]... [OPTIONS] [ACTIONS]
Search for files and perform actions on them. First failed action stops
processing of current file. Defaults: PATH is current directory, action is
'-print'
-L,-follow Follow symlinks
-H ...on command line only
-xdev Don't descend directories on other filesystems
-maxdepth N Descend at most N levels. -maxdepth 0 applies
actions to command line arguments only
-mindepth N Don't act on first N levels
-depth Act on directory *after* traversing it
Actions:n ( ACTIONS ) Group actions for -o / -a ! ACT Invert ACT's
success/failure ACT1 [-a] ACT2 If ACT1 fails, stop, else do ACT2 ACT1 -o
ACT2 If ACT1 succeeds, stop, else do ACT2 Note: -a has higher priority
than -o -name PATTERN Match file name (w/o directory name) to PATTERN
-iname PATTERN Case insensitive -name -path PATTERN Match path to
PATTERN -ipath PATTERN Case insensitive -path -regex PATTERN Match path
to regex PATTERN -type X File type is X (one of: f,d,l,b,c,...) -perm
MASK At least one mask bit (+MASK), all bits (-MASK), or exactly MASK
bits are set in file's mode -mtime DAYS mtime is greater than (+N), less
than (-N), or exactly N days in the past -mmin MINS mtime is greater
than (+N), less than (-N), or exactly N minutes in the past -newer
FILE mtime is more recent than FILE's -inum N File has inode number N
-user NAME/ID File is owned by given user -group NAME/ID File is owned
by given group -size N[bck] File size is N (c:bytes,k:kbytes,b:512
bytes(def.)) +/-N: file size is bigger/smaller than N -links N Number
of links is greater than (+N), less than (-N), or exactly N -prune If
current file is directory, don't descend into it If none of the following
actions is specified, -print is assumed -print Print file name
-print0 Print file name, NUL terminated -exec CMD ARG ; Run CMD with
all instances of {} replaced by file name. Fails if CMD exits with
nonzero -exec CMD ARG + Run CMD with {} replaced by list of file names
-delete Delete current file/directory. Turns on -depth option
- flock
- flock [-sxun] FD|{FILE [-c] PROG ARGS}
[Un]lock file descriptor, or lock FILE, run PROG
-s Shared lock
-x Exclusive lock (default)
-u Unlock FD
-n Fail rather than wait
- fold
- fold [-bs] [-w WIDTH] [FILE]...
Wrap input lines in each FILE (or stdin), writing to stdout
-b Count bytes rather than columns
-s Break at spaces
-w Use WIDTH columns instead of 80
- fsync
- fsync [-d] FILE...
Write files' buffered blocks to disk
-d Avoid syncing metadata
- ftpd
- ftpd [-wvS] [-t N] [-T N] [DIR]
Anonymous FTP server
ftpd should be used as an inetd service. ftpd's line for inetd.conf: 21
stream tcp nowait root ftpd ftpd /files/to/serve It also can be ran from
tcpsvd:n tcpsvd -vE 0.0.0.0 21 ftpd /files/to/serve
-w Allow upload
-v Log errors to stderr. -vv: verbose log
-S Log errors to syslog. -SS: verbose log
-t,-T Idle and absolute timeouts
DIR Change root to this directory
- ftpget
- ftpget [OPTIONS] HOST [LOCAL_FILE] REMOTE_FILE
Download a file via FTP
-c,--continue Continue previous transfer
-v,--verbose Verbose
-u,--username USER Username
-p,--password PASS Password
-P,--port NUM Port
- ftpput
- ftpput [OPTIONS] HOST [REMOTE_FILE] LOCAL_FILE
Upload a file to a FTP server
-v,--verbose Verbose
-u,--username USER Username
-p,--password PASS Password
-P,--port NUM Port
- getopt
- getopt [OPTIONS] [--] OPTSTRING PARAMS
-a,--alternative Allow long options starting with single -
-l,--longoptions=LOPT[,...] Long options to recognize
-n,--name=PROGNAME The name under which errors are reported
-o,--options=OPTSTRING Short options to recognize
-q,--quiet No error messages on unrecognized options
-Q,--quiet-output No normal output
-s,--shell=SHELL Set shell quoting conventions
-T,--test Version test (exits with 4)
-u,--unquoted Don't quote output
Example:n
O=`getopt -l bb: -- ab:c:: "$@"` || exit 1 eval set --
"$O" while true; do case "$1" in -a) echo A; shift;;
-b|--bb) echo "B:'$2'"; shift 2;; -c) case "$2" in
"") echo C; shift 2;; *) echo "C:'$2'"; shift 2;;
esac;; --) shift; break;; *) echo Error; exit 1;; esac done
- grep
- grep [-HhnlLoqvsriwFE] [-m N] [-A/B/C N] PATTERN/-e PATTERN.../-f FILE
[FILE]...
Search for PATTERN in FILEs (or stdin)
-H Add 'filename:' prefix
-h Do not add 'filename:' prefix
-n Add 'line_no:' prefix
-l Show only names of files that match
-L Show only names of files that don't match
-c Show only count of matching lines
-o Show only the matching part of line
-q Quiet. Return 0 if PATTERN is found, 1 otherwise
-v Select non-matching lines
-s Suppress open and read errors
-r Recurse
-i Ignore case
-w Match whole words only
-x Match whole lines only
-F PATTERN is a literal (not regexp)
-E PATTERN is an extended regexp
-m N Match up to N times per file
-A N Print N lines of trailing context
-B N Print N lines of leading context
-C N Same as '-A N -B N'
-e PTRN Pattern to match
-f FILE Read pattern from file
- groups
- groups [USER]
Print the group memberships of USER or for the current process
- gunzip
- gunzip [-cft] [FILE]...
Decompress FILEs (or stdin)
-c Write to stdout
-f Force
-t Test file integrity
- gzip
- gzip [-cfd] [FILE]...
Compress FILEs (or stdin)
-d Decompress
-c Write to stdout
-f Force
- hd
- hd FILE...
hd is an alias for hexdump -C
- head
- head [OPTIONS] [FILE]...
Print first 10 lines of each FILE (or stdin) to stdout. With more than one
FILE, precede each with a filename header.
-n N[kbm] Print first N lines
-n -N[kbm] Print all except N last lines
-c [-]N[kbm] Print first N bytes
-q Never print headers
-v Always print headers
N may be suffixed by k (x1024), b (x512), or m (x1024^2).
- hexdump
- hexdump [-bcCdefnosvx] [FILE]...
Display FILEs (or stdin) in a user specified format
-b One-byte octal display
-c One-byte character display
-C Canonical hex+ASCII, 16 bytes per line
-d Two-byte decimal display
-e FORMAT_STRING
-f FORMAT_FILE
-n LENGTH Interpret only LENGTH bytes of input
-o Two-byte octal display
-s OFFSET Skip OFFSET bytes
-v Display all input data
-x Two-byte hexadecimal display
- hostid
- hostid
Print out a unique 32-bit identifier for the machine
- hostname
- hostname [OPTIONS] [HOSTNAME | -F FILE]
Get or set hostname or DNS domain name
-s Short
-i Addresses for the hostname
-d DNS domain name
-f Fully qualified domain name
-F FILE Use FILE's content as hostname
- httpd
- httpd [-ifv[v]] [-c CONFFILE] [-p [IP:]PORT] [-r REALM] [-h HOME] or httpd
-d/-e/-m STRING
Listen for incoming HTTP requests
-i Inetd mode
-f Don't daemonize
-v[v] Verbose
-p [IP:]PORT Bind to IP:PORT (default *:80)
-r REALM Authentication Realm for Basic Authentication
-h HOME Home directory (default .)
-c FILE Configuration file (default {/etc,HOME}/httpd.conf)
-m STRING MD5 crypt STRING
-e STRING HTML encode STRING
-d STRING URL decode STRING
- id
- id [OPTIONS] [USER]
Print information about USER or the current user
-u User ID
-g Group ID
-G Supplementary group IDs
-n Print names instead of numbers
-r Print real ID instead of effective ID
- install
- install [-cdDsp] [-o USER] [-g GRP] [-m MODE] [-t DIR] [SOURCE]... DEST
Copy files and set attributes
-c Just copy (default)
-d Create directories
-D Create leading target directories
-s Strip symbol table
-p Preserve date
-o USER Set ownership
-g GRP Set group ownership
-m MODE Set permissions
-t DIR Install to DIR
- iostat
- iostat [-c] [-d] [-t] [-z] [-k|-m] [ALL|BLOCKDEV...] [INTERVAL [COUNT]]
Report CPU and I/O statistics
-c Show CPU utilization
-d Show device utilization
-t Print current time
-z Omit devices with no activity
-k Use kb/s
-m Use Mb/s
- ipcalc
- ipcalc [OPTIONS] ADDRESS[/PREFIX] [NETMASK]
Calculate IP network settings from a IP address
-b,--broadcast Display calculated broadcast address
-n,--network Display calculated network address
-m,--netmask Display default netmask for IP
-p,--prefix Display the prefix for IP/NETMASK
-h,--hostname Display first resolved host name
-s,--silent Don't ever display error messages
- kill
- kill [-l] [-SIG] PID...
Send a signal (default: TERM) to given PIDs
-l List all signal names and numbers
- killall
- killall [-l] [-q] [-SIG] PROCESS_NAME...
Send a signal (default: TERM) to given processes
-l List all signal names and numbers
-q Don't complain if no processes were killed
- killall5
- killall5 [-l] [-SIG] [-o PID]...
Send a signal (default: TERM) to all processes outside current session
-l List all signal names and numbers
-o PID Don't signal this PID
- less
- less [-EIMmNSh~] [FILE]...
View FILE (or stdin) one screenful at a time
-E Quit once the end of a file is reached
-I Ignore case in all searches
-M,-m Display status line with line numbers
and percentage through the file
-N Prefix line number to each line
-S Truncate long lines
-~ Suppress ~s displayed past EOF
- ln
- ln [OPTIONS] TARGET... LINK|DIR
Create a link LINK or DIR/TARGET to the specified TARGET(s)
-s Make symlinks instead of hardlinks
-f Remove existing destinations
-n Don't dereference symlinks - treat like normal file
-b Make a backup of the target (if exists) before link operation
-S suf Use suffix instead of ~ when making backup files
-T 2nd arg must be a DIR
-v Verbose
- logger
- logger [OPTIONS] [MESSAGE]
Write MESSAGE (or stdin) to syslog
-s Log to stderr as well as the system log
-t TAG Log using the specified tag (defaults to user name)
-p PRIO Priority (numeric or facility.level pair)
- logname
- logname
Print the name of the current user
- logread
- logread [-fF]
Show messages in syslogd's circular buffer
-f Output data as log grows
-F Same as -f, but dump buffer first
- lpq
- lpq [-P queue[@host[:port]]] [-U USERNAME] [-d JOBID]... [-fs]
-P lp service to connect to (else uses $PRINTER)
-d Delete jobs
-f Force any waiting job to be printed
-s Short display
- lpr
- lpr -P queue[@host[:port]] -U USERNAME -J TITLE -Vmh [FILE]...
-P lp service to connect to (else uses $PRINTER)
-m Send mail on completion
-h Print banner page too
-V Verbose
- ls
- ls [-1AaCxdLHRFplinsehrSXvctu] [-w WIDTH] [FILE]...
List directory contents
-1 One column output
-a Include entries which start with .
-A Like -a, but exclude . and ..
-C List by columns
-x List by lines
-d List directory entries instead of contents
-L Follow symlinks
-H Follow symlinks on command line
-R Recurse
-p Append / to dir entries
-F Append indicator (one of */=@|) to entries
-l Long listing format
-i List inode numbers
-n List numeric UIDs and GIDs instead of names
-s List allocated blocks
-e List full date and time
-h List sizes in human readable format (1K 243M 2G)
-r Sort in reverse order
-S Sort by size
-X Sort by extension
-v Sort by version
-c With -l: sort by ctime
-t With -l: sort by mtime
-u With -l: sort by atime
-w N Assume the terminal is N columns wide
--color[={always,never,auto}] Control coloring
- lsof
- lsof
Show all open files
- lspci
- lspci [-mk]
List all PCI devices
-m Parsable output
-k Show driver
- lzma
- lzma -d [-cf] [FILE]...
Decompress FILE (or stdin)
-d Decompress
-c Write to stdout
-f Force
- lzop
- lzop [-cfvd123456789CF] [FILE]...
-1..9 Compression level
-d Decompress
-c Write to stdout
-f Force
-v Verbose
-F Don't store or verify checksum
-C Also write checksum of compressed block
- md5sum
- md5sum [-c[sw]] [FILE]...
Print or check MD5 checksums
-c Check sums against list in FILEs
-s Don't output anything, status code shows success
-w Warn about improperly formatted checksum lines
- microcom
- microcom [-d DELAY] [-t TIMEOUT] [-s SPEED] [-X] TTY
Copy bytes for stdin to TTY and from TTY to stdout
-d Wait up to DELAY ms for TTY output before sending every
next byte to it
-t Exit if both stdin and TTY are silent for TIMEOUT ms
-s Set serial line to SPEED
-X Disable special meaning of NUL and Ctrl-X from stdin
- mkdir
- mkdir [OPTIONS] DIRECTORY...
Create DIRECTORY
-m MODE Mode
-p No error if exists; make parent directories as needed
- mkfifo
- mkfifo [-m MODE] NAME
Create named pipe
-m MODE Mode (default a=rw)
- mktemp
- mktemp [-dt] [-p DIR] [TEMPLATE]
Create a temporary file with name based on TEMPLATE and print its name.
TEMPLATE must end with XXXXXX (e.g. [/dir/]nameXXXXXX). Without TEMPLATE,
-t tmp.XXXXXX is assumed.
-d Make directory, not file
-q Fail silently on errors
-t Prepend base directory name to TEMPLATE
-p DIR Use DIR as a base directory (implies -t)
-u Do not create anything; print a name
Base directory is: -p DIR, else $TMPDIR, else /tmp
- more
- more [FILE]...
View FILE (or stdin) one screenful at a time
- mpstat
- mpstat [-A] [-I SUM|CPU|ALL|SCPU] [-u] [-P num|ALL] [INTERVAL [COUNT]]
Per-processor statistics
-A Same as -I ALL -u -P ALL
-I SUM|CPU|ALL|SCPU Report interrupt statistics
-P num|ALL Processor to monitor
-u Report CPU utilization
- mv
- mv [-fin] SOURCE DEST or: mv [-fin] SOURCE... DIRECTORY
Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY
-f Don't prompt before overwriting
-i Interactive, prompt before overwrite
-n Don't overwrite an existing file
- nc
- nc [IPADDR PORT]
Open a pipe to IP:PORT
- nice
- nice [-n ADJUST] [PROG ARGS]
Change scheduling priority, run PROG
-n ADJUST Adjust priority by ADJUST
- nohup
- nohup PROG ARGS
Run PROG immune to hangups, with output to a non-tty
- od
- od [-aBbcDdeFfHhIiLlOovXx] [FILE]
Print FILE (or stdin) unambiguously, as octal bytes by default
- patch
- patch [OPTIONS] [ORIGFILE [PATCHFILE]]
-p,--strip N Strip N leading components from file names
-i,--input DIFF Read DIFF instead of stdin
-R,--reverse Reverse patch
-N,--forward Ignore already applied patches
-E,--remove-empty-files Remove output files if they become empty
- pgrep
- pgrep [-flnovx] [-s SID|-P PPID|PATTERN]
Display process(es) selected by regex PATTERN
-l Show command name too
-f Match against entire command line
-n Show the newest process only
-o Show the oldest process only
-v Negate the match
-x Match whole name (not substring)
-s Match session ID (0 for current)
-P Match parent process ID
- pkill
- pkill [-l|-SIGNAL] [-fnovx] [-s SID|-P PPID|PATTERN]
Send a signal to process(es) selected by regex PATTERN
-l List all signals
-f Match against entire command line
-n Signal the newest process only
-o Signal the oldest process only
-v Negate the match
-x Match whole name (not substring)
-s Match session ID (0 for current)
-P Match parent process ID
- pmap
- pmap [-xq] PID
Display process memory usage
-x Show details
-q Quiet
- powertop
- powertop
Analyze power consumption on Intel-based laptops
- printenv
- printenv [VARIABLE]...
Print environment VARIABLEs. If no VARIABLE specified, print all.
- printf
- printf FORMAT [ARG]...
Format and print ARG(s) according to FORMAT (a-la C printf)
- ps
- ps
Show list of processes
w Wide output
l Long output
T Show threads
- pscan
- pscan [-cb] [-p MIN_PORT] [-P MAX_PORT] [-t TIMEOUT] [-T MIN_RTT] HOST
Scan a host, print all open ports
-c Show closed ports too
-b Show blocked ports too
-p Scan from this port (default 1)
-P Scan up to this port (default 1024)
-t Timeout (default 5000 ms)
-T Minimum rtt (default 5 ms, increase for congested hosts)
- pstree
- pstree [-p] [PID|USER]
Display process tree, optionally start from USER or PID
-p Show pids
- pwd
- pwd
Print the full filename of the current working directory
- pwdx
- pwdx PID...
Show current directory for PIDs
- readlink
- readlink [-fnv] FILE
Display the value of a symlink
-f Canonicalize by following all symlinks
-n Don't add newline
-v Verbose
- readprofile
- readprofile [OPTIONS]
-m mapfile (Default: /boot/System.map)
-p profile (Default: /proc/profile)
-M NUM Set the profiling multiplier to NUM
-i Print only info about the sampling step
-v Verbose
-a Print all symbols, even if count is 0
-b Print individual histogram-bin counts
-s Print individual counters within functions
-r Reset all the counters (root only)
-n Disable byte order auto-detection
- realpath
- realpath FILE...
Return the absolute pathnames of given FILE
- renice
- renice [-n] PRIORITY [[-p | -g | -u] ID...]...
Change scheduling priority of a running process
-n Add PRIORITY to current nice value
Without -n, nice value is set to PRIORITY
-p Process ids (default)
-g Process group ids
-u Process user names
- reset
- reset
Reset the screen
- resize
- resize
Resize the screen
- rev
- rev [FILE]...
Reverse lines of FILE
- rm
- rm [-irf] FILE...
Remove (unlink) FILEs
-i Always prompt before removing
-f Never prompt
-R,-r Recurse
- rmdir
- rmdir [OPTIONS] DIRECTORY...
Remove DIRECTORY if it is empty
-p Include parents
- rpm
- rpm -i PACKAGE.rpm; rpm -qp[ildc] PACKAGE.rpm
Manipulate RPM packages
Commands:n -i Install package -qp Query package -qpi Show information
-qpl List contents -qpd List documents -qpc List config files
- rpm2cpio
- rpm2cpio package.rpm
Output a cpio archive of the rpm file
- run-parts
- run-parts [-a ARG]... [-u UMASK] [--reverse] [--test] [--exit-on-error]
[--list] DIRECTORY
Run a bunch of scripts in DIRECTORY
-a ARG Pass ARG as argument to scripts
-u UMASK Set UMASK before running scripts
--reverse Reverse execution order
--test Dry run
--exit-on-error Exit if a script exits with non-zero
--list Print names of matching files even if they are not executable
- scriptreplay
- scriptreplay timingfile [typescript [divisor]]
Play back typescripts, using timing information
- sed
- sed [-inrE] [-f FILE]... [-e CMD]... [FILE]... or: sed [-inrE] CMD
[FILE]...
-e CMD Add CMD to sed commands to be executed
-f FILE Add FILE contents to sed commands to be executed
-i[SFX] Edit files in-place (otherwise sends to stdout)
Optionally back files up, appending SFX
-n Suppress automatic printing of pattern space
-r,-E Use extended regex syntax
If no -e or -f, the first non-option argument is the sed command string.
Remaining arguments are input files (stdin if none).
- seq
- seq [-w] [-s SEP] [FIRST [INC]] LAST
Print numbers from FIRST to LAST, in steps of INC. FIRST, INC default to 1.
-w Pad to last with leading zeros
-s SEP String separator
- setsid
- setsid [-c] PROG ARGS
Run PROG in a new session. PROG will have no controlling terminal and will
not be affected by keyboard signals (^C etc).
-c Set controlling terminal to stdin
- sh
- sh [-/+OPTIONS] [-/+o OPT]... [-c 'SCRIPT' [ARG0 [ARGS]] / FILE [ARGS]]
Unix shell interpreter
- sha1sum
- sha1sum [-c[sw]] [FILE]...
Print or check SHA1 checksums
-c Check sums against list in FILEs
-s Don't output anything, status code shows success
-w Warn about improperly formatted checksum lines
- sha256sum
- sha256sum [-c[sw]] [FILE]...
Print or check SHA256 checksums
-c Check sums against list in FILEs
-s Don't output anything, status code shows success
-w Warn about improperly formatted checksum lines
- sha3sum
- sha3sum [-c[sw]] [-a BITS] [FILE]...
Print or check SHA3 checksums
-c Check sums against list in FILEs
-s Don't output anything, status code shows success
-w Warn about improperly formatted checksum lines
-a BITS 224 (default), 256, 384, 512
- sha512sum
- sha512sum [-c[sw]] [FILE]...
Print or check SHA512 checksums
-c Check sums against list in FILEs
-s Don't output anything, status code shows success
-w Warn about improperly formatted checksum lines
- shuf
- shuf [-e|-i L-H] [-n NUM] [-o FILE] [-z] [FILE|ARG...]
Randomly permute lines
-e Treat ARGs as lines
-i L-H Treat numbers L-H as lines
-n NUM Output at most NUM lines
-o FILE Write to FILE, not standard output
-z End lines with zero byte, not newline
- sleep
- sleep [N]...
Pause for a time equal to the total of the args given, where each arg can
have an optional suffix of (s)econds, (m)inutes, (h)ours, or (d)ays
- smemcap
- smemcap >SMEMDATA.TAR
Collect memory usage data in /proc and write it to stdout
- sort
- sort [-nrugMcszbdfiokt] [-o FILE] [-k
start[.offset][opts][,end[.offset][opts]] [-t CHAR] [FILE]...
Sort lines of text
-o FILE Output to FILE
-c Check whether input is sorted
-b Ignore leading blanks
-f Ignore case
-i Ignore unprintable characters
-d Dictionary order (blank or alphanumeric only)
-g General numerical sort
-M Sort month
-n Sort numbers
-t CHAR Field separator
-k N[,M] Sort by Nth field
-r Reverse sort order
-s Stable (don't sort ties alphabetically)
-u Suppress duplicate lines
-z Lines are terminated by NUL, not newline
- split
- split [OPTIONS] [INPUT [PREFIX]]
-b N[k|m] Split by N (kilo|mega)bytes
-l N Split by N lines
-a N Use N letters as suffix
- strings
- strings [-fo] [-t o/d/x] [-n LEN] [FILE]...
Display printable strings in a binary file
-f Precede strings with filenames
-o Precede strings with octal offsets
-t o/d/x Precede strings with offsets in base 8/10/16
-n LEN At least LEN characters form a string (default 4)
- sum
- sum [-rs] [FILE]...
Checksum and count the blocks in a file
-r Use BSD sum algorithm (1K blocks)
-s Use System V sum algorithm (512byte blocks)
- sync
- sync
Write all buffered blocks to disk
- sysctl
- sysctl [OPTIONS] [KEY[=VALUE]]...
Show/set kernel parameters
-e Don't warn about unknown keys
-n Don't show key names
-a Show all values
-w Set values
-p FILE Set values from FILE (default /etc/sysctl.conf)
-q Set values silently
- syslogd
- syslogd [OPTIONS]
System logging utility
-n Run in foreground
-R HOST[:PORT] Log to HOST:PORT (default PORT:514)
-L Log locally and via network (default is network only if -R)
-C[size_kb] Log to shared mem buffer (use logread to read it)
-K Log to kernel printk buffer (use dmesg to read it)
-O FILE Log to FILE (default: /var/log/messages, stdout if -)
-s SIZE Max size (KB) before rotation (default:200KB, 0=off)
-b N N rotated logs to keep (default:1, max=99, 0=purge)
-l N Log only messages more urgent than prio N (1-8)
-S Smaller output
-f FILE Use FILE as config (default:/etc/syslog.conf)
- tail
- tail [OPTIONS] [FILE]...
Print last 10 lines of each FILE (or stdin) to stdout. With more than one
FILE, precede each with a filename header.
-f Print data as file grows
-c [+]N[kbm] Print last N bytes
-n N[kbm] Print last N lines
-n +N[kbm] Start on Nth line and print the rest
-q Never print headers
-s SECONDS Wait SECONDS between reads with -f
-v Always print headers
-F Same as -f, but keep retrying
N may be suffixed by k (x1024), b (x512), or m (x1024^2).
- tar
- tar -[cxtZzJjahmvO] [-X FILE] [-T FILE] [-f TARFILE] [-C DIR] [FILE]...
Create, extract, or list files from a tar file
Operation:n c Create x Extract t List f Name of TARFILE ('-' for
stdin/out) C Change to DIR before operation v Verbose Z (De)compress
using compress z (De)compress using gzip J (De)compress using xz
j (De)compress using bzip2 a (De)compress using lzma O Extract to
stdout h Follow symlinks m Don't restore mtime exclude File to exclude
X File with names to exclude T File with names to include
- tee
- tee [-ai] [FILE]...
Copy stdin to each FILE, and also to stdout
-a Append to the given FILEs, don't overwrite
-i Ignore interrupt signals (SIGINT)
- telnet
- telnet [-a] [-l USER] HOST [PORT]
Connect to telnet server
-a Automatic login with $USER variable
-l USER Automatic login as USER
- telnetd
- telnetd [OPTIONS]
Handle incoming telnet connections
-l LOGIN Exec LOGIN on connect
-f ISSUE_FILE Display ISSUE_FILE instead of /etc/issue
-K Close connection as soon as login exits
(normally wait until all programs close slave pty)
-p PORT Port to listen on
-b ADDR[:PORT] Address to bind to
-F Run in foreground
-i Inetd mode
-w SEC Inetd 'wait' mode, linger time SEC
-S Log to syslog (implied by -i or without -F and -w)
- tftp
- tftp [OPTIONS] HOST [PORT]
Transfer a file from/to tftp server
-l FILE Local FILE
-r FILE Remote FILE
-g Get file
-p Put file
-b SIZE Transfer blocks of SIZE octets
- tftpd
- tftpd [-cr] [-u USER] [DIR]
Transfer a file on tftp client's request
tftpd should be used as an inetd service. tftpd's line for inetd.conf: 69
dgram udp nowait root tftpd tftpd -l /files/to/serve It also can be ran
from udpsvd:n udpsvd -vE 0.0.0.0 69 tftpd /files/to/serve
-r Prohibit upload
-c Allow file creation via upload
-u Access files as USER
-l Log to syslog (inetd mode requires this)
- timeout
- timeout [-t SECS] [-s SIG] PROG ARGS
Runs PROG. Sends SIG to it if it is not gone in SECS seconds. Defaults:
SECS: 10, SIG: TERM.
- touch
- touch [-c] [-d DATE] [-t DATE] [-r FILE] FILE...
Update the last-modified date on the given FILE[s]
-c Don't create files
-h Don't follow links
-d DT Date/time to use
-t DT Date/time to use
-r FILE Use FILE's date/time
- tr
- tr [-cds] STRING1 [STRING2]
Translate, squeeze, or delete characters from stdin, writing to stdout
-c Take complement of STRING1
-d Delete input characters coded STRING1
-s Squeeze multiple output characters of STRING2 into one character
- truncate
- truncate [-c] -s SIZE FILE...
Truncate FILEs to the given size
-c Do not create files
-s SIZE Truncate to SIZE
- tty
- tty
Print file name of stdin's terminal
-s Print nothing, only return exit status
- ttysize
- ttysize [w] [h]
Print dimension(s) of stdin's terminal, on error return 80x25
- uname
- uname [-amnrspvio]
Print system information
-a Print all
-m The machine (hardware) type
-n Hostname
-r Kernel release
-s Kernel name (default)
-p Processor type
-v Kernel version
-i The hardware platform
-o OS name
- uncompress
- uncompress [-cf] [FILE]...
Decompress .Z file[s]
-c Write to stdout
-f Overwrite
- unexpand
- unexpand [-fa][-t N] [FILE]...
Convert spaces to tabs, writing to stdout
-a,--all Convert all blanks
-f,--first-only Convert only leading blanks
-t,--tabs=N Tabstops every N chars
- uniq
- uniq [-cdu][-f,s,w N] [INPUT [OUTPUT]]
Discard duplicate lines
-c Prefix lines by the number of occurrences
-d Only print duplicate lines
-u Only print unique lines
-f N Skip first N fields
-s N Skip first N chars (after any skipped fields)
-w N Compare N characters in line
- unix2dos
- unix2dos [-ud] [FILE]
Convert FILE in-place from Unix to DOS format. When no file is given, use
stdin/stdout.
-u dos2unix
-d unix2dos
- unlink
- unlink FILE
Delete FILE by calling unlink()
- unlzma
- unlzma [-cf] [FILE]...
Decompress FILE (or stdin)
-c Write to stdout
-f Force
- unxz
- unxz [-cf] [FILE]...
Decompress FILE (or stdin)
-c Write to stdout
-f Force
- unzip
- unzip [-lnopq] FILE[.zip] [FILE]... [-x FILE...] [-d DIR]
Extract FILEs from ZIP archive
-l List contents (with -q for short form)
-n Never overwrite files (default: ask)
-o Overwrite
-p Print to stdout
-q Quiet
-x FILE Exclude FILEs
-d DIR Extract into DIR
- usleep
- usleep N
Pause for N microseconds
- uudecode
- uudecode [-o OUTFILE] [INFILE]
Uudecode a file Finds OUTFILE in uuencoded source unless -o is given
- uuencode
- uuencode [-m] [FILE] STORED_FILENAME
Uuencode FILE (or stdin) to stdout
-m Use base64 encoding per RFC1521
- vi
- vi [OPTIONS] [FILE]...
Edit FILE
-c CMD Initial command to run ($EXINIT also available)
-R Read-only
-H List available features
- volname
- volname [DEVICE]
Show CD volume name of the DEVICE (default /dev/cdrom)
- watch
- watch [-n SEC] [-t] PROG ARGS
Run PROG periodically
-n Loop period in seconds (default 2)
-t Don't print header
- wc
- wc [-cmlwL] [FILE]...
Count lines, words, and bytes for each FILE (or stdin)
-c Count bytes
-m Count characters
-l Count newlines
-w Count words
-L Print longest line length
- wget
- wget [-c|--continue] [--spider] [-q|--quiet] [-O|--output-document FILE]
[--header 'header: value'] [-Y|--proxy on/off] [-P DIR] [-U|--user-agent
AGENT] [-T SEC] URL...
Retrieve files via HTTP or FTP
--spider Spider mode - only check file existence
-c Continue retrieval of aborted transfer
-q Quiet
-P DIR Save to DIR (default .)
-T SEC Network read timeout is SEC seconds
-O FILE Save to FILE ('-' for stdout)
-U STR Use STR for User-Agent header
-Y on/off Use proxy
- which
- which [COMMAND]...
Locate a COMMAND
- whoami
- whoami
Print the user name associated with the current effective user id
- xargs
- xargs [OPTIONS] [PROG ARGS]
Run PROG on every item given by stdin
-p Ask user whether to run each command
-r Don't run command if input is empty
-0 Input is separated by NUL characters
-t Print the command on stderr before execution
-e[STR] STR stops input processing
-n N Pass no more than N args to PROG
-s N Pass command line of no more than N bytes
-I STR Replace STR within PROG ARGS with input line
-x Exit if size is exceeded
- xz
- xz -d [-cf] [FILE]...
Decompress FILE (or stdin)
-d Decompress
-c Write to stdout
-f Force
- yes
- yes [STRING]
Repeatedly output a line with STRING, or 'y'
GNU Libc (glibc) uses the Name Service Switch (NSS) to configure the behavior of
the C library for the local environment, and to configure how it reads system
data, such as passwords and group information. This is implemented using an
/etc/nsswitch.conf configuration file, and using one or more of the
/lib/libnss_* libraries. BusyBox tries to avoid using any libc calls that make
use of NSS. Some applets however, such as login and su, will use libc
functions that require NSS.
If you enable CONFIG_USE_BB_PWD_GRP, BusyBox will use internal functions to
directly access the /etc/passwd, /etc/group, and /etc/shadow files without
using NSS. This may allow you to run your system without the need for
installing any of the NSS configuration files and libraries.
When used with glibc, the BusyBox 'networking' applets will similarly require
that you install at least some of the glibc NSS stuff (in particular,
/etc/nsswitch.conf, /lib/libnss_dns*, /lib/libnss_files*, and
/lib/libresolv*).
Shameless Plug: As an alternative, one could use a C library such as uClibc. In
addition to making your system significantly smaller, uClibc does not require
the use of any NSS support files or libraries.
Denis Vlasenko <vda.linux@googlemail.com>
The following people have contributed code to BusyBox whether they know it or
not. If you have written code included in BusyBox, you should probably be
listed here so you can obtain your bit of eternal glory. If you should be
listed here, or the description of what you have done needs more detail, or is
incorrect, please send in an update.
Emanuele Aina <emanuele.aina@tiscali.it>
run-parts
Erik Andersen <andersen@codepoet.org>
Tons of new stuff, major rewrite of most of the
core apps, tons of new apps as noted in header files.
Lots of tedious effort writing these boring docs that
nobody is going to actually read.
Laurence Anderson <l.d.anderson@warwick.ac.uk>
rpm2cpio, unzip, get_header_cpio, read_gz interface, rpm
Jeff Angielski <jeff@theptrgroup.com>
ftpput, ftpget
Edward Betts <edward@debian.org>
expr, hostid, logname, whoami
John Beppu <beppu@codepoet.org>
du, nslookup, sort
Brian Candler <B.Candler@pobox.com>
tiny-ls(ls)
Randolph Chung <tausq@debian.org>
fbset, ping, hostname
Dave Cinege <dcinege@psychosis.com>
more(v2), makedevs, dutmp, modularization, auto links file,
various fixes, Linux Router Project maintenance
Jordan Crouse <jordan@cosmicpenguin.net>
ipcalc
Magnus Damm <damm@opensource.se>
tftp client insmod powerpc support
Larry Doolittle <ldoolitt@recycle.lbl.gov>
pristine source directory compilation, lots of patches and fixes.
Glenn Engel <glenne@engel.org>
httpd
Gennady Feldman <gfeldman@gena01.com>
Sysklogd (single threaded syslogd, IPC Circular buffer support,
logread), various fixes.
Karl M. Hegbloom <karlheg@debian.org>
cp_mv.c, the test suite, various fixes to utility.c, &c.
Daniel Jacobowitz <dan@debian.org>
mktemp.c
Matt Kraai <kraai@alumni.cmu.edu>
documentation, bugfixes, test suite
Stephan Linz <linz@li-pro.net>
ipcalc, Red Hat equivalence
John Lombardo <john@deltanet.com>
tr
Glenn McGrath <bug1@iinet.net.au>
Common unarchiving code and unarchiving applets, ifupdown, ftpgetput,
nameif, sed, patch, fold, install, uudecode.
Various bugfixes, review and apply numerous patches.
Manuel Novoa III <mjn3@codepoet.org>
cat, head, mkfifo, mknod, rmdir, sleep, tee, tty, uniq, usleep, wc, yes,
mesg, vconfig, make_directory, parse_mode, dirname, mode_string,
get_last_path_component, simplify_path, and a number trivial libbb routines
also bug fixes, partial rewrites, and size optimizations in
ash, basename, cal, cmp, cp, df, du, echo, env, ln, logname, md5sum, mkdir,
mv, realpath, rm, sort, tail, touch, uname, watch, arith, human_readable,
interface, dutmp, ifconfig, route
Vladimir Oleynik <dzo@simtreas.ru>
cmdedit; xargs(current), httpd(current);
ports: ash, crond, fdisk, inetd, stty, traceroute, top;
locale, various fixes
and irreconcilable critic of everything not perfect.
Bruce Perens <bruce@pixar.com>
Original author of BusyBox in 1995, 1996. Some of his code can
still be found hiding here and there...
Tim Riker <Tim@Rikers.org>
bug fixes, member of fan club
Kent Robotti <robotti@metconnect.com>
reset, tons and tons of bug reports and patches.
Chip Rosenthal <chip@unicom.com>, <crosenth@covad.com>
wget - Contributed by permission of Covad Communications
Pavel Roskin <proski@gnu.org>
Lots of bugs fixes and patches.
Gyepi Sam <gyepi@praxis-sw.com>
Remote logging feature for syslogd
Linus Torvalds <torvalds@transmeta.com>
mkswap, fsck.minix, mkfs.minix
Mark Whitley <markw@codepoet.org>
grep, sed, cut, xargs(previous),
style-guide, new-applet-HOWTO, bug fixes, etc.
Charles P. Wright <cpwright@villagenet.com>
gzip, mini-netcat(nc)
Enrique Zanardi <ezanardi@ull.es>
tarcat (since removed), loadkmap, various fixes, Debian maintenance
Tito Ragusa <farmatito@tiscali.it>
devfsd and size optimizations in strings, openvt and deallocvt.
Paul Fox <pgf@foxharp.boston.ma.us>
vi editing mode for ash, various other patches/fixes
Roberto A. Foglietta <me@roberto.foglietta.name>
port: dnsd
Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
misc
Mike Frysinger <vapier@gentoo.org>
initial e2fsprogs, printenv, setarch, sum, misc
Jie Zhang <jie.zhang@analog.com>
fixed two bugs in msh and hush (exitcode of killed processes)