DOKK / manpages / debian 11 / parallel / parcat.1.en
PARCAT(1) parallel PARCAT(1)

parcat - cat files or fifos in parallel

parcat file(s)

GNU parcat reads files or fifos in parallel. It writes full lines so there will be no problem with mixed-half-lines which you risk if you use:

   (cat file1 & cat file2 &) | ...


  mkfifo slot-{1..5}-digit-{0..9}
  parallel -j5 'seq 100000 | grep {} > slot-{%}-digit-{}' ::: {0..9} &
  parallel parcat slot-{1..5}-digit-{} '>' digit-{} ::: {0..9}

GNU parcat is part of GNU parallel. Report bugs to <bug-parallel@gnu.org>.

Copyright (C) 2016 Ole Tange, http://ole.tange.dk and Free Software Foundation, Inc.

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GNU parcat uses Perl.

cat(1), parallel(1)

2018-12-01 20161222