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Calling perl subroutine from shell script (sh)

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# 1  
Old 06-21-2011
Error Calling perl subroutine from shell script (sh)
Hi,

ive a perl script, where it has a subroutine clear() in it, and i've one shell script which runs in background, from that shell script i wanted to call subroutine which is in perl script, that's perl script is not module, just simple script.

Eg:
Code:
perl script <test>
 
#! /usr/bin/perl
 
some code goes here ......
 
sub clear()
{
some stuff ... 
}

bash script <shell.sh>
Code:
#!/bin/sh
-- some stuff here -- 
 
if [ "$FSIZE" -ge "$SIZE" ] ; then
 
< i need to call subroutine which is defined in perl script < test> >
 
fi

i tried using perl -m<module> . as my perl is not a module, it didnt work.

please help..

Thanks,
Last edited by pludi; 06-21-2011 at 12:53 PM..
# 2  
Old 06-21-2011
Simplest option would be to keep sub clear() in a separate pl script and invoke that code from shell.
# 3  
Old 06-21-2011
Hi getmmg,
No i don't want to write new Perl script, as the script has clear subroutine, i wanted to use the existing Perl script subroutine <test>, from bash <shell.sh>. As shell script will call if that condition satisfies. please help with this existing perl script only.
Thanks.
# 4  
Old 06-23-2011
Hi,

Anyone got solution ?? i'm not getting anything.. please help ..

Rrgards,
Arn
# 5  
Old 06-23-2011
Hi
Try this:


Code:
$ cat a.pm
#! /usr/bin/perl

my $x="welcome";
sub clear()
{
   print "inside clear of perl...\n";
}
1
$

Now, from the shell trying to execute the perl function:

Code:
$ perl -Ma -e 'clear()'
inside clear of perl...
$

where -M is for the module, and "a" indicates to pick the module named a.pm. The same line you can put inside your shell script as well.

Guru.
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