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Manual Reference Pages  -  GST (1)


Smalltalk - the GNU Smalltalk virtual machine




GNU Smalltalk usage:
gst [ flag ... ] [ file ... ] gst [ flag ... ] { -f | --file } file [ args ... ]
Short flags can appear either as -xyz or as -x -y -z. If an option is mandatory for a long option, it is also mandatory for a short one. The currently defined set of flags is:
-a --smalltalk-args
  Pass the remaining arguments to Smalltalk.
-c --core-dump
  Dump core on fatal signal.
-D --declaration-trace
  Trace compilation of all loaded files.
-E --execution-trace
  Trace execution of all loaded files.
-g --no-gc-message
  Do not print garbage collection messages.
-H --help Print this message and exit.
-i --rebuild-image
  Ignore the image file; rebuild it from scratch.
  Rebuild the image file from scratch if any kernel file is newer.
-I --image FILE
  Instead of ‘’, use FILE as the image file, and ignore the kernel files’ timestamps.
-K --kernel-file FILE
  Make FILE’s path relative to the image path.
-q --quiet --silent
  Do not print execution information.
-r --regression-test
  Run in regression test mode, i.e. make printed messages constant.
-S --snapshot
  Save a snapshot just before exiting.
-v --version
  Print the Smalltalk version number and exit.
-V --verbose
  Show names of loaded files and execution stats.
  Execute as a ‘process’ (from within Emacs)
--kernel-directory DIR
  Look for kernel files in directory DIR.
  Don’t read user customization files.
- Read input from standard input explicitly.
Files are loaded one after the other. After the last one is loaded, Smalltalk will exit. If no files are specified, Smalltalk reads from the terminal, with prompts.

In the second form, the file after -f is the last loaded file; any parameter after that file is passed to the Smalltalk program.


Written by Steve Byrne ( and Paolo Bonzini (

GNU Smalltalk comes with NO WARRANTY, to the extent permitted by law. You may redistribute copies of GNU Smalltalk under the terms of the GNU General Public License. For more information, see the file named COPYING.

Using default kernel path: (null) Using default image path: (null)


Report bugs to <> GNU Smalltalk home page: <>. General help using GNU software: <>.

Copyright 2009 Free Software Foundation, Inc.


The full documentation for Smalltalk is maintained as a Texinfo manual. If the info and Smalltalk programs are properly installed at your site, the command
info gst
should give you access to the complete manual.
Search for    or go to Top of page |  Section 1 |  Main Index

Smalltalk version 3.2.5-4dc033e SMALLTALK (1) April 2013

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