GNU Parallel: Difference between revisions
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==Usage== | ==Usage== | ||
[https://www.gnu.org/software/parallel/parallel_tutorial.html parallel tutorial] | |||
==Replacement strings== | |||
Parallel includes a handful of default replacement strings: | |||
<pre> | |||
--rpl '{} ' | |||
--rpl '{#} $_=$job->seq()' | |||
--rpl '{%} $_=$job->slot()' | |||
--rpl '{/} s:.*/::' | |||
--rpl '{//} $Global::use{"File::Basename"} ||= | |||
eval "use File::Basename; 1;"; $_ = dirname($_);' | |||
--rpl '{/.} s:.*/::; s:\.[^/.]+$::;' | |||
--rpl '{.} s:\.[^/.]+$::' | |||
</pre> | |||
;Parent dirname | |||
<code>--rpl '{//} s:.*/(.*)/[^/]*:\1:;'</code> | |||
Revision as of 15:39, 14 November 2022
GNU parallel is useful for running multiple processes over an input list, similar to xargs.
Usage
Replacement strings
Parallel includes a handful of default replacement strings:
--rpl '{} '
--rpl '{#} $_=$job->seq()'
--rpl '{%} $_=$job->slot()'
--rpl '{/} s:.*/::'
--rpl '{//} $Global::use{"File::Basename"} ||=
eval "use File::Basename; 1;"; $_ = dirname($_);'
--rpl '{/.} s:.*/::; s:\.[^/.]+$::;'
--rpl '{.} s:\.[^/.]+$::'
- Parent dirname
--rpl '{//} s:.*/(.*)/[^/]*:\1:;'