ts - timestamp input
ts [-r] [-i | -s] [format]
ts adds a timestamp to the beginning of each line of input.
The optional format parameter controls how the timestamp is formatted, as used
(3). The default format is "%b %d %H:%M:%S". In
addition to the regular strftime conversion specifications, "%.S"
and "%.s" and "%.T" are like "%S" and
"%s" and "%T", but provide subsecond resolution (ie,
"30.00001" and "1301682593.00001" and
If the -r switch is passed, it instead converts existing timestamps in the input
to relative times, such as "15m5s ago". Many common timestamp
formats are supported. Note that the Time::Duration and Date::Parse perl
modules are required for this mode to work. Currently, converting localized
dates is not supported.
If both -r and a format is passed, the existing timestamps are converted to the
If the -i or -s switch is passed, ts timestamps incrementally instead. In case
of -i, every timestamp will be the time elapsed since the last timestamp. In
case of -s, the time elapsed since start of the program is used. The default
format changes to "%H:%M:%S", and "%.S" and
"%.s" can be used as well.
The -m switch makes the system's monotonic clock be used.
The standard TZ environment variable controls what time zone dates are assumed
to be in, if a timezone is not specified as part of the date.
Copyright 2006 by Joey Hess <firstname.lastname@example.org>
Licensed under the GNU GPL.