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parallel: Better example in man page: Use multiple inputs in one command

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Ole Tange 2010-11-02 23:36:12 +01:00
parent 05eae86b69
commit 12596830ce
1 changed files with 15 additions and 5 deletions
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@ -153,10 +153,6 @@ files. The arguments can be accessed in the command as B<{1}>
B<{6}> will refer to the line with the same line number from the 6th
file.
Example: Print the number on the opposing sides of a six sided die.
B<parallel -a <(seq 6) -a <(seq 6 -1 1) echo>
=item B<--arg-file-sep> I<sep-str> (beta testing)
@ -1330,6 +1326,20 @@ B<ls *.es.* | perl -pe 'print; s/\.es//' | parallel -N2 cp {1} {2}>
The perl command spits out 2 lines for each input. GNU B<parallel>
takes 2 inputs (using B<-N2>) and replaces {1} and {2} with the inputs.
Print the number on the opposing sides of a six sided die:
B<parallel -a <(seq 6) -a <(seq 6 -1 1) echo>
Convert files from all subdirs to PNG-files with consecutive numbers
(useful for making input PNG's for B<ffmpeg>):
B<parallel -a <(find . -type f | sort) -a <(seq 1 $(find . -type f|wc -l)) convert {1} {2}.png>
Alternative version:
B<find . -type f | sort | parallel convert {} \$PARALLEL_SEQ.png>
=head1 EXAMPLE: Use a table as input
Content of table_file.tsv:
@ -2435,7 +2445,7 @@ sub acquire_semaphore {
sub parse_options {
# Returns: N/A
# Defaults:
$Global::version = 20101014;
$Global::version = 201011002;
$Global::progname = 'parallel';
$Global::debug = 0;
$Global::verbose = 0;