I dont have privilege to download modules

You don't have permissions to write to your own home directories? ...odd.

Is there any other way to find the execution time of perl script?

On a *nix system, you can use the time command, eg:

time ./foo.pl
real    0m0.014s
user    0m0.000s
sys     0m0.010s
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Or, you can make use of the Perl time command to add timestamps at the beginning and end of your script.

#!/usr/bin/perl -w
use strict;
my $start_run = time();

# all your code here

my $end_run = time();
my $run_time = $end_run - $start_run;
print "Job took $run_time seconds\n";
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If you want greater than 1 second accuracy, then you'll need to use Time::HiRes.

Cheers,
Darren :)

To include compile time:

#!/usr/bin/perl -w
use strict;
BEGIN { our $start_run = time(); }
use ...
use ...

# all your code here

my $end_run = time();
my $run_time = $end_run - our $start_run;
print "Job took $run_time seconds\n";
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No need to calculate start time: it is always available through $^T (see perlvar).

print time - $^T;
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And for programs with so few liners, there is probably little need for use strict, use warnings, meaningful variable names, etc,. ( Some posters seem too vocal on such matters; with a little more encouragement, they might also advise on the java-way of doing things.)

True that warnings, strict, etc. may not be entirely necessary for programs that are only a half-dozen lines long, but:
1. It's good to display them in sample code which new initiates may emulate
2. You never know when your basic 6-line program may start evolving into something more substantial
3. For some of us, -wT and use strict are such habits that it's more work to exclude them than to include them

McDarren,
The Anonymous Monk indicated that they did not have privilege to download modules. Nothing was said about not having permissions to write to a home directory. Everyone should know how to manually install a module in a non-standard directory as it is a FAQ, but thinking that it applies to everyone assumes a great deal.

It is not entirely uncommon not to allow outbound internet access. The same applies to not allowing inbound FTP, SCP, etc. Oh, and access to a compiler - also not uncommon to see it restricted. These restrictions may be technical impediments or use policies that must be agreed to.

The next comment is not directed at you specifically, but to the community in general. We are to quick to assume that someone having trouble installing modules is just ignorant of alternative directory installation and summarily dismiss them. Granted, there is usually a way to get it done but it is not so obvious that it could be included in a FAQ. Each situation is different and we should be open to helping them while still not assisting in the circumvention of whatever use policy that was agreed to.

Cheers - L~R

If you want more profiling information, then you need to use a profiling tool. Devel::DProf is great for this. As far as "having privilege" to download modules, you could always download them and install them under you home directory as long as you set your PERL5LIB to point to the base install location. TIMTOWTDI.

#!/usr/bin/perl

use Timer::Runtime;

print "hi\n";
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$ perl duration.pl
duration.pl Started: Fri Aug  5 01:48:14 2016
hi
duration.pl Finished: Fri Aug  5 01:48:14 2016, elapsed time = 00:00:0
+0.000398
$
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