debiandude has asked for the wisdom of the Perl Monks concerning the following question:

Hey I was wondering if perl has a mode similiar to the shell scripts 'set -x' function. I would like to see how a program goes though things and see where it is spending most of its time. Thanks.

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•Re: Perl set -x emulation
by merlyn (Sage) on Aug 12, 2004 at 17:25 UTC
    From perldoc perlrun: 
             If you're just trying to get a print out of each line of Perl
+ code
         as it executes, the way that "sh -x" provides for shell scrip
+ts,
         you can't use Perl's -D switch. Instead do this

           # If you have "env" utility
           env=PERLDB_OPTS="NonStop=1 AutoTrace=1 frame=2" perl -dS pr
+ogram

           # Bourne shell syntax
           $ PERLDB_OPTS="NonStop=1 AutoTrace=1 frame=2" perl -dS prog
+ram

           # csh syntax
           % (setenv PERLDB_OPTS "NonStop=1 AutoTrace=1 frame=2"; perl
+ -dS program)

         See perldebug for details and variations.

    [download]

    -- Randal L. Schwartz, Perl hacker
    Be sure to read my standard disclaimer if this is a reply.

[reply]
[d/l]
Re: Perl set -x emulation
by gaal (Parson) on Aug 12, 2004 at 17:12 UTC
[reply]
      Awesome thanks!
[reply]
Re: Perl set -x emulation
by gaal (Parson) on Aug 12, 2004 at 17:15 UTC
[reply]
Re: Perl set -x emulation
by vegasjoe (Sexton) on Aug 12, 2004 at 23:49 UTC
[reply]

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