Re: Capture error from one-liner

This is not specific to korn shell. Perl with -p doesn't die if a file doesn't exist (cf. the behaviour of open). Unfortunately, autodie doesn't help here, so if you want it to die, you have to change the logic to something like

                                                            |
                                                            V
perl -e 'for my $file (@ARGV) { open my $IN, "<", $file or die $!; whi
+le (<$IN>) {s/AJZ/AZZ/g if /^AB/; print}}' input > output
[download]

لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

Comment on Re: Capture error from one-liner Download Code

Replies are listed 'Best First'.
Re^2: Capture error from one-liner by shmem (Chancellor) on Sep 19, 2014 at 16:54 UTC
Perl with -p doesn't die if a file doesn't exist Right you are; a workaround is `qwurx [shmem] ~ > perl -p -e 'BEGIN{$SIG{__WARN__}=sub{die@_}}' nonexi +stent Can't open nonexistent: No such file or directory. qwurx [shmem] ~ > echo $? 2` [download] perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'	[reply] [d/l]
Re^3: Capture error from one-liner by choroba (Cardinal) on Sep 19, 2014 at 16:56 UTC
Well, my one-liners are usually not warning-proof... لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ	[reply]
Re^2: Capture error from one-liner by LanX (Saint) on Sep 19, 2014 at 17:03 UTC
But wait the OP showed us an error displayed on the console! Maybe -i is producing it? Cheers Rolf _{(addicted to the Perl Programming Language and ☆☆☆☆ :)}	[reply]
Re^2: Capture error from one-liner by dirtdog (Monk) on Sep 19, 2014 at 16:48 UTC
thanks for the help I'll pipe the command to a log and grep for errors.	[reply]