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https://git.savannah.gnu.org/git/parallel.git
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parallel: --ll should not print empty lines.
This commit is contained in:
Ole Tange
parent
73b3f10a9f
commit
f07696cc00
17
NEWS
17
NEWS
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@ -1,3 +1,20 @@
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20221222
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New in this release:
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* --results works on more file systems (e.g. fat)
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* Joblog gives the same exit code as bash.
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News about GNU Parallel:
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* Programação Shell Linux: Paralelismo de processos com GNU parallel
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https://www.youtube.com/watch?v=duheTWLIrp8
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* Talk Python: Data Science from the Command Line
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https://talkpython.fm/episodes/show/392/data-science-from-the-command-line
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20221122
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New in this release:
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@ -4,9 +4,6 @@
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Quote of the month:
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GNU Parallel absolutely rocks.
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-- Austin Mordahl@Stackoverflow
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Got around to using GNU parallel for the first time from a suggestion by @jdwasmuth ... now I'm wishing I started using this years ago
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-- Stefan Gavriliuc @GavriliucStefan@twitter
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@ -207,6 +204,9 @@ https://negfeedback.blogspot.com/2020/05/indispensable-command-line-tools.html
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=== Used ===
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GNU Parallel absolutely rocks.
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-- Austin Mordahl@Stackoverflow
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[GNU Parallel] is the most amazing tool ever invented for bioinformatics!
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-- Istvan Albert https://www.ialbert.me/
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@ -23,6 +23,7 @@ With the same things that goes in the announce mail
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Start termux on Android
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Start: wssh mac ping fi.dk
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niceload --prg firefox &
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cd testsuite; make mem; make polar; make long; make short
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== Update version ==
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@ -232,9 +233,9 @@ http://freshmeat.net/projects/parallel/releases/new
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== Update Mastodon Twitter ==
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https://hostux.social/web/@GNU_Parallel
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https://hostux.social/@GNU_Parallel
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https://joindiaspora.com/stream
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# Dead: https://joindiaspora.com/stream
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New release of #GNU Parallel pi.dk/0
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New in this release pi.dk/2
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@ -261,24 +262,25 @@ from:tange@gnu.org
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to:parallel@gnu.org, bug-parallel@gnu.org
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stable-bcc: Jesse Alama <jessealama@fastmail.fm>
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Subject: GNU Parallel 20221222 ('ChatGPT/Mauneloa/#A4Revolution/#A4革命/#MahsaAmini') released
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Subject: GNU Parallel 20221222 ('ChatGPT') released
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GNU Parallel 20221222 ('') has been released. It is available for download at: lbry://@GnuParallel:4
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GNU Parallel 20221222 ('ChatGPT') has been released. It is available for download at: lbry://@GnuParallel:4
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Quote of the month:
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<<>>
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GNU Parallel absolutely rocks.
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-- Austin Mordahl@Stackoverflow
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New in this release:
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* --results works on more file systems (e.g. fat)
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* <<>>
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* Joblog gives the same exit code as bash.
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News about GNU Parallel:
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https://www.youtube.com/watch?v=duheTWLIrp8
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https://talkpython.fm/episodes/show/392/data-science-from-the-command-line
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* Programação Shell Linux: Paralelismo de processos com GNU parallel https://www.youtube.com/watch?v=duheTWLIrp8
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* Talk Python: Data Science from the Command Line https://talkpython.fm/episodes/show/392/data-science-from-the-command-line
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GNU Parallel - For people who live life in the parallel lane.
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19
src/parallel
19
src/parallel
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@ -11335,6 +11335,7 @@ sub print_files($) {
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sub print_latest_line($) {
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my $self = shift;
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my $out_fh = shift;
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if(not defined $self->{$out_fh,'latestline'}) { return; }
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my $row = $self->row();
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# Is row visible?
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if(not ($minvisible <= $row
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@ -11440,6 +11441,12 @@ sub print_files($) {
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# Keep the latest full line
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my $l = join('', @$halfline_ref,
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substr($buf,0,$i-1));
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# "ab\rb\n" = "bb", but we cannot process that correctly.
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# Line may be:
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# foo \r bar \n
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# foo \r bar \r baz \r
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# If so: Remove 'foo \r'
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$l =~ s/.*\r//g;
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my $j = ((rindex($l,"\n")+1) ||
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(rindex($l,"\r")+1));
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$self->{$out_fh,'latestline'} = substr($l,$j);
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@ -11507,7 +11514,17 @@ sub print_files($) {
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if($opt::latestline) {
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# Force re-computing color if --colorfailed
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if($opt::colorfailed) { delete $self->{'color'}; }
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$self->print_latest_line($out_fh);
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if($self->{$out_fh,'latestline'} ne "") {
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$self->print_latest_line($out_fh);
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}
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if(@{$self->{'halfline'}{$fdno}}) {
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my $l = join('', @{$self->{'halfline'}{$fdno}});
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if($l ne "") {
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$self->{$out_fh,'latestline'} = $l;
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}
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} else {
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$self->{$out_fh,'latestline'} = undef;
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}
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# Print latest line from jobs that are already done
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while($print_later{$minvisible}) {
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$print_later{$minvisible}->print_latest_line($out_fh);
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@ -61,7 +61,7 @@ often be used as a substitute for B<xargs> or B<cat | bash>.
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=head2 Reader's guide
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GNU B<parallel> includes the 4 types of documentation: Tutorial,
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how-to, reference and explanation.
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how-to, reference and explanation/design.
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=head3 Tutorial
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@ -86,13 +86,19 @@ parallel_examples>. They will give you an idea of what GNU B<parallel>
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is capable of, and you may find a solution you can simply adapt to
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your situation.
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If the example do not cover your exact needs, the options map
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(https://www.gnu.org/software/parallel/parallel_options_map.pdf) can
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help you identify options that are related, so you can look these up
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in the man page.
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=head3 Reference
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If you need a one page printable cheat sheet you can find it on:
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https://www.gnu.org/software/parallel/parallel_cheat.pdf
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The man page is the reference for all options.
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The man page is the reference for all options, and reading the man
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page from cover to cover is probably not what you need.
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=head3 Design discussion
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@ -1025,7 +1031,7 @@ temporary fifo with the name in B<{}>, so you can do:
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Beware: If the fifo is never opened for reading, the job will block forever:
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seq 1000000 | parallel --fifo echo This will block
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seq 1000000 | parallel --fifo echo This will block forever
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seq 1000000 | parallel --fifo 'echo This will not block < {}'
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By using B<--fifo> instead of B<--cat> you may save I/O as B<--cat>
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@ -1075,7 +1081,7 @@ Behave like GNU B<parallel>.
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This option historically took precedence over B<--tollef>. The
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B<--tollef> option is now retired, and therefore may not be
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used. B<--gnu> is kept for compatibility.
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used. B<--gnu> is kept for compatibility, but does nothing.
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=item B<--group>
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@ -1087,10 +1093,9 @@ command is finished. Stdout (standard output) first followed by stderr
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(standard error).
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This takes in the order of 0.5ms CPU time per job and depends on the
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speed of your disk for larger output. It can be disabled with B<-u>,
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but this means output from different commands can get mixed.
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speed of your disk for larger output.
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B<--group> is the default. Can be reversed with B<-u>.
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B<--group> is the default.
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See also: B<--line-buffer> B<--ungroup> B<--tag>
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@ -1627,9 +1632,9 @@ job continuously while it is running, then lines from the second job
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while that is running. It will buffer full lines, but jobs will not
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mix. Compare:
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parallel -j0 'echo {};sleep {};echo {}' ::: 1 3 2 4
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parallel -j0 --lb 'echo {};sleep {};echo {}' ::: 1 3 2 4
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parallel -j0 -k --lb 'echo {};sleep {};echo {}' ::: 1 3 2 4
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parallel -j0 'echo [{};sleep {};echo {}]' ::: 1 3 2 4
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parallel -j0 --lb 'echo [{};sleep {};echo {}]' ::: 1 3 2 4
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parallel -j0 -k --lb 'echo [{};sleep {};echo {}]' ::: 1 3 2 4
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See also: B<--group> B<--ungroup> B<--keep-order> B<--tag>
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@ -1948,8 +1953,10 @@ See also: B<--profile>
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Add more replacement strings.
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Activate additional replacement strings: {+/} {+.} {+..} {+...} {..}
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{...} {/..} {/...} {##}. The idea being that '{+foo}' matches the opposite of
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'{foo}' and {} = {+/}/{/} = {.}.{+.} = {+/}/{/.}.{+.} = {..}.{+..} =
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{...} {/..} {/...} {##}. The idea being that '{+foo}' matches the
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opposite of '{foo}' so that:
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{} = {+/}/{/} = {.}.{+.} = {+/}/{/.}.{+.} = {..}.{+..} =
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{+/}/{/..}.{+..} = {...}.{+...} = {+/}/{/...}.{+...}
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B<{##}> is the total number of jobs to be run. It is incompatible with
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@ -69,6 +69,7 @@ par_load() {
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echo '### Test --load (must give 1=true)'
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parallel -j0 -N0 --timeout 5 --nice 10 'bzip2 < /dev/zero >/dev/null' ::: 1 2 3 4 5 6 &
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parallel --argsep ,, --joblog - -N0 parallel --load 100% echo ::: 1 ,, 1 |
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# Must take > 5 sec
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parallel -k --colsep '\t' --header : echo '{=4 $_=$_>5=}'
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}
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@ -8,6 +8,48 @@
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# Each should be taking 10-30s and be possible to run in parallel
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# I.e.: No race conditions, no logins
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par_keeporder_roundrobin() {
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echo 'bug #50081: --keep-order --round-robin should give predictable results'
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. `which env_parallel.bash`
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run_roundrobin() {
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random1G() {
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< /dev/zero openssl enc -aes-128-ctr -K 1234 -iv 1234 2>/dev/null |
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head -c 1G;
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}
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random1G |
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parallel $1 -j13 --block 1m --pipe --roundrobin 'echo {#} $(md5sum)' |
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sort
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}
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env_parset a,b,c run_roundrobin ::: -k -k ''
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if [ "$a" == "$b" ] ; then
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# Good: -k should be == -k
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if [ "$a" == "$c" ] ; then
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# Bad: without -k the command should give different output
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echo 'Broken: a == c'
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printf "$a\n$b\n$c\n"
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else
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echo OK
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fi
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else
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echo 'Broken: a <> b'
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printf "$a\n$b\n$c\n"
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fi
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}
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par_load_from_PARALLEL() {
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echo "### Test reading load from PARALLEL"
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export PARALLEL="--load 300%"
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# Ignore stderr due to 'Starting processes took > 2 sec'
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seq 1 1000000 |
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parallel -kj200 --recend "\n" --spreadstdin gzip -1 2>/dev/null |
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zcat | sort -n | md5sum
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seq 1 1000000 |
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parallel -kj20 --recend "\n" --spreadstdin gzip -1 |
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zcat | sort -n | md5sum
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}
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par_quote_special_results() {
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doit() {
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mkfs=$1
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@ -112,18 +112,6 @@ par_shard() {
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perl -pe 's/(.*\d{5,}){3}/OK/'
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}
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par_load_from_PARALLEL() {
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echo "### Test reading load from PARALLEL"
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export PARALLEL="--load 300%"
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# Ignore stderr due to 'Starting processes took > 2 sec'
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seq 1 1000000 |
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parallel -kj200 --recend "\n" --spreadstdin gzip -1 2>/dev/null |
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zcat | sort -n | md5sum
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seq 1 1000000 |
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parallel -kj20 --recend "\n" --spreadstdin gzip -1 |
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zcat | sort -n | md5sum
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}
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par_exit_code() {
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echo 'bug #52207: Exit status 0 when child job is killed, even with "now,fail=1"'
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in_shell_run_command() {
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@ -558,36 +546,6 @@ par_plus_dyn_repl() {
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echo $myvar | parallel --plus echo {} {/%def/}
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}
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par_keeporder_roundrobin() {
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echo 'bug #50081: --keep-order --round-robin should give predictable results'
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. `which env_parallel.bash`
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run_roundrobin() {
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random1G() {
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< /dev/zero openssl enc -aes-128-ctr -K 1234 -iv 1234 2>/dev/null |
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head -c 1G;
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}
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random1G |
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parallel $1 -j13 --block 1m --pipe --roundrobin 'echo {#} $(md5sum)' |
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sort
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}
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env_parset a,b,c run_roundrobin ::: -k -k ''
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if [ "$a" == "$b" ] ; then
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# Good: -k should be == -k
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if [ "$a" == "$c" ] ; then
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# Bad: without -k the command should give different output
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echo 'Broken: a == c'
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printf "$a\n$b\n$c\n"
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else
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echo OK
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fi
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else
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echo 'Broken: a <> b'
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printf "$a\n$b\n$c\n"
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fi
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}
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par_test_ipv6_format() {
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echo '### Host as IPv6 address'
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(
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@ -518,6 +518,8 @@ par_k_linebuffer 20 20
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par_k_linebuffer stdout top
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par_k_linebuffer stderr in the middle
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par_k_linebuffer stdout end
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par_keeporder_roundrobin bug #50081: --keep-order --round-robin should give predictable results
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par_keeporder_roundrobin OK
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par_kill_children_timeout ### Test killing children with --timeout and exit value (failed if timed out)
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par_kill_children_timeout 0 0 0
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par_kill_children_timeout parallel: Warning: This job was killed because it timed out:
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@ -594,6 +596,9 @@ par_ll_long_line
par_ll_long_line 30xxxxxxxxxxxxxxxxxxxxxxxxxxx>
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par_load_blocks ### Test if --load blocks. Bug.
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par_load_blocks 53d025127ae99ab79e8502aae2d9bea6 -
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par_load_blocks 53d025127ae99ab79e8502aae2d9bea6 -
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par_load_from_PARALLEL ### Test reading load from PARALLEL
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par_load_from_PARALLEL 8a7095c1c23bfadc311fe6b16d950582 -
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par_load_from_PARALLEL 8a7095c1c23bfadc311fe6b16d950582 -
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par_long_line_remote ### Deal with long command lines on remote servers
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par_long_line_remote 6 6 30006
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par_long_line_remote 6 50 250050
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@ -1464,11 +1464,6 @@ par_groupby_pipepart csv , s/^(\d+[\t ,]+){2}(\d+).*/$2/ NewRec
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par_groupby_pipepart csv , s/^(\d+[\t ,]+){2}(\d+).*/$2/ 90001 90001 1170031
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par_groupby_pipepart csv , s/^(\d+[\t ,]+){2}(\d+).*/$2/ NewRec
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par_groupby_pipepart csv , s/^(\d+[\t ,]+){2}(\d+).*/$2/ 90001 90001 1170031
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par_keeporder_roundrobin bug #50081: --keep-order --round-robin should give predictable results
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par_keeporder_roundrobin OK
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par_load_from_PARALLEL ### Test reading load from PARALLEL
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par_load_from_PARALLEL 8a7095c1c23bfadc311fe6b16d950582 -
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par_load_from_PARALLEL 8a7095c1c23bfadc311fe6b16d950582 -
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par_macron ### See if \257\256 \257<\257> is replaced correctly
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par_macron ¯ -X ¯
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par_macron ¯ -X ¯
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