Re: one liner in script

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Re^2: one liner in script by Anonymous Monk on Apr 12, 2010 at 14:20 UTC
Actually I have a much larger perl script where I run a bunch of commands from the command line in between back tacs like $line=`cmd 1; cmd 2 ; cmd 3 .... cmd n `; [download] Now for one of the commands I have to run it for only 4 secs. Now the only way I could come up with is like this : alarm() { /bin/perl -e 'alarm shift; exec @ARGV' "$@"; } ;alarm 4 'cmd 4 ' Now when I try to put that in a perl script between back tacs it doesnt work. This code doesnt work. $line=`cmd 1; cmd 2 ; cmd 3 ;alarm() { /bin/perl -e 'alarm shift; exec + @ARGV' "$@"; } ;alarm 4 'cmd 4 '.... cmd n `; [download] Is there anyway I can make the cmd 4 run for 4 secs only.	[reply] [d/l] [select]
Re^3: one liner in script by choroba (Cardinal) on Apr 12, 2010 at 15:41 UTC
This code works for me: $line=` cmd 1 cmd 2 cmd 3 alarm () { /usr/bin/perl -e ' alarm shift; exec \@ARGV;' -- "\$@" } alarm 4 cmd 4 cmd n `; print "$line"; [download] The differences are: path to perl (might be different on your system) escaping the @ sign escaping the $ sign Update: the -- separator	[reply] [d/l]
Re^4: one liner in script by Anonymous Monk on Apr 12, 2010 at 16:56 UTC
Ahh xlente... Thank you for helping me . I will put this in the script and check . It should work now.	[reply]