#!/bin/bash # Test xargs compatibility PAR=parallel echo '### Test -L -l and --max-lines' (echo a_b;echo c) | parallel -km -L2 echo (echo a_b;echo c) | xargs -L2 echo (echo a_b;echo c) | parallel -km -L1 echo (echo a_b;echo c) | xargs -L1 echo (echo a_b' ';echo c;echo d) | parallel -km -L1 echo (echo a_b' ';echo c;echo d) | xargs -L1 echo (echo a_b' ';echo c;echo d;echo e) | parallel -km -L2 echo (echo a_b' ';echo c;echo d;echo e) | xargs -L2 echo (echo a_b' ';echo c;echo d;echo e) | parallel -km -l echo (echo a_b' ';echo c;echo d;echo e) | xargs -l echo (echo a_b' ';echo c;echo d;echo e) | parallel -km -l2 echo (echo a_b' ';echo c;echo d;echo e) | xargs -l2 echo (echo a_b' ';echo c;echo d;echo e) | parallel -km -l1 echo (echo a_b' ';echo c;echo d;echo e) | xargs -l1 echo (echo a_b' ';echo c;echo d;echo e) | parallel -km --max-lines 2 echo (echo a_b' ';echo c;echo d;echo e) | xargs --max-lines=2 echo (echo a_b' ';echo c;echo d;echo e) | parallel -km --max-lines echo (echo a_b' ';echo c;echo d;echo e) | xargs --max-lines echo echo '### test too long args' perl -e 'print "z"x1000000' | parallel echo 2>&1 perl -e 'print "z"x1000000' | xargs echo 2>&1 (seq 1 10; perl -e 'print "z"x1000000'; seq 12 15) | stdout parallel -j1 -km -s 10 echo (seq 1 10; perl -e 'print "z"x1000000'; seq 12 15) | stdout xargs -s 10 echo echo '### Test -x' (seq 1 10; echo 12345; seq 12 15) | stdout parallel -j1 -km -s 10 -x echo (seq 1 10; echo 12345; seq 12 15) | stdout xargs -s 10 -x echo (seq 1 10; echo 1234; seq 12 15) | stdout parallel -j1 -km -s 10 -x echo (seq 1 10; echo 1234; seq 12 15) | stdout xargs -s 10 -x echo echo '### Test bugfix if no command given' (echo echo; seq 1 5; perl -e 'print "z"x1000000'; seq 12 15) | stdout parallel -j1 -km -s 10 echo '### Test -a and --arg-file: Read input from file instead of stdin' seq 1 10 >/tmp/$$ $PAR -k -a /tmp/$$ echo $PAR -k --arg-file /tmp/$$ echo cd input-files/test15 echo 'xargs Expect: 3 1 2' echo 3 | xargs -P 1 -n 1 -a files cat - echo 'parallel Expect: 3 1 2' echo 3 | parallel -k -P 2 -n 1 -a files cat - echo 'xargs Expect: 1 3 2' echo 3 | xargs -I {} -P 1 -n 1 -a files cat {} - echo 'parallel Expect: 1 3 2' echo 3 | parallel -k -I {} -P 1 -n 1 -a files cat {} - echo '### Test -i and --replace: Replace with argument' (echo a; echo END; echo b) | $PAR -k -i -eEND echo repl{}ce (echo a; echo END; echo b) | $PAR -k --replace -eEND echo repl{}ce (echo a; echo END; echo b) | $PAR -k -i+ -eEND echo repl+ce (echo e; echo END; echo b) | $PAR -k -i'*' -eEND echo r'*'plac'*' (echo a; echo END; echo b) | $PAR -k --replace + -eEND echo repl+ce (echo a; echo END; echo b) | $PAR -k --replace== -eEND echo repl=ce (echo a; echo END; echo b) | $PAR -k --replace = -eEND echo repl=ce (echo a; echo END; echo b) | $PAR -k --replace=^ -eEND echo repl^ce (echo a; echo END; echo b) | $PAR -k -I^ -eEND echo repl^ce echo '### Test -E: Artificial end-of-file' (echo include this; echo END; echo not this) | $PAR -k -E END echo (echo include this; echo END; echo not this) | $PAR -k -EEND echo echo '### Test -e and --eof: Artificial end-of-file' (echo include this; echo END; echo not this) | $PAR -k -e END echo (echo include this; echo END; echo not this) | $PAR -k -eEND echo (echo include this; echo END; echo not this) | $PAR -k --eof=END echo (echo include this; echo END; echo not this) | $PAR -k --eof END echo echo '### Test -n and --max-args: Max number of args per line (only with -X and -m)' (echo line 1;echo line 2;echo line 3) | $PAR -k -n1 -m echo (echo line 1;echo line 1;echo line 2) | $PAR -k -n2 -m echo (echo line 1;echo line 2;echo line 3) | $PAR -k -n1 -X echo (echo line 1;echo line 1;echo line 2) | $PAR -k -n2 -X echo (echo line 1;echo line 2;echo line 3) | $PAR -k --max-args=1 -X echo (echo line 1;echo line 2;echo line 3) | $PAR -k --max-args 1 -X echo (echo line 1;echo line 1;echo line 2) | $PAR -k --max-args=2 -X echo (echo line 1;echo line 1;echo line 2) | $PAR -k --max-args 2 -X echo echo '### Test --max-procs and -P: Number of processes' seq 1 10 | $PAR -k --max-procs +0 echo max proc seq 1 10 | $PAR -k -P 200% echo 200% proc echo '### Test --delimiter and -d: Delimiter instead of newline' echo '# Yes there is supposed to be an extra newline for -d N' echo line 1Nline 2Nline 3 | $PAR -k -d N echo This is echo line 1Nline 2Nline 3 | $PAR -k --delimiter N echo This is printf "delimiter NUL line 1\0line 2\0line 3" | $PAR -k -d '\0' echo printf "delimiter TAB line 1\tline 2\tline 3" | $PAR -k --delimiter '\t' echo echo '### Test --max-chars and -s: Max number of chars in a line' (echo line 1;echo line 1;echo line 2) | $PAR -k --max-chars 25 -X echo (echo line 1;echo line 1;echo line 2) | $PAR -k -s 25 -X echo echo '### Test --no-run-if-empty and -r: This should give no output' echo " " | $PAR -r echo echo " " | $PAR --no-run-if-empty echo echo '### Test --help and -h: Help output (just check we get the same amount of lines)' echo Output from -h and --help $PAR -h | wc -l $PAR --help | wc -l echo '### Test --version: Version output (just check we get the same amount of lines)' $PAR --version | wc -l echo '### Test --verbose and -t' (echo b; echo c; echo f) | $PAR -k -t echo {}ar 2>&1 >/dev/null (echo b; echo c; echo f) | $PAR -k --verbose echo {}ar 2>&1 >/dev/null echo '### Test --show-limits' (echo b; echo c; echo f) | $PAR -k --show-limits echo {}ar (echo b; echo c; echo f) | $PAR -k --show-limits -s 100 echo {}ar