Re^5: Reading output of external program without Shell

"The code you showed does..."

Ah, right. Thanks for correcting me. A precious hint.

BTW, from the friendly manual:

 # Launch a sub process directly, no shell.  Can't do redirection
   # with this form, it's here to behave like system() with an
   # inverted result.
      $r = run "cat a b c";
[download]

Perhaps i missed something.

"Es ist immer komplizierter" (Ludwig Marcuse)

Still my favorite quote and motto.

Best regards, Karl

ŤThe Crux of the Biscuit is the Apostropheť

perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'Help

Comment on Re^5: Reading output of external program without Shell Select or Download Code

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Re^6: Reading output of external program without Shell by haukex (Archbishop) on Nov 16, 2017 at 12:09 UTC
Hm, you're right, it does say that! `# Call this system's shell, returns TRUE on 0 exit code # THIS IS THE OPPOSITE SENSE OF system()'s RETURN VALUE run "cat a b c" or die "cat returned $?"; # Launch a sub process directly, no shell. Can't do redirection # with this form, it's here to behave like system() with an # inverted result. $r = run "cat a b c";` [download] I don't see how `run` would know that it is being called as `run() or die` vs. `$r = run()`. Also, I can't get it to work... `$ perl -wMstrict -MIPC::Run=run -e' my $r = run "pstree -A $$" ' perl---sh---pstree` [download] Later on the docs say: run(), start(), and harness() can all take a harness specification as input. A harness specification is either a single string to be passed to the systems' shell And, on the other hand, the IPC::Run docs don't explicitly say that `run [...]` doesn't use the shell, although in the code you can find `exec { $_[0] } @_;`. It's all a bit confusing unfortunately.	[reply] [d/l] [select]
Re^7: Reading output of external program without Shell by karlgoethebier (Abbot) on Nov 16, 2017 at 13:40 UTC
"...a bit confusing..." Yes. I asked the author. Best regards, Karl ŤThe Crux of the Biscuit is the Apostropheť `perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'`Help	[reply] [d/l]