Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Calling a perl script from a perl script
Top Forums Shell Programming and Scripting Calling a perl script from a perl script Post 302106147 by new2ss on Tuesday 6th of February 2007 10:03:06 PM
Old 02-06-2007
Quote:
Originally Posted by cbkihong
Yes. Use require().

I think unless your B.pl runs itself in background mode (such as that of daemons, for instance), the perl process for B.pl will not exit before it completes, and hence system() in your calling script will not return (note that system() just executes a perl process in the same way as other processes). If the exit() occurs after system(), you can assume it will only be executed when B.pl exits for whatever reason.

Did you try to find out whether that is the case?
B.pl is not a background mode, its a normal user script.

i qoute from perldoc for system "...Does exactly the same thing as exec LIST , except that a fork is done first, and the parent process waits for the child process to complete...." So i can take it that my first script will wait for B.pl to finish before exiting.

the perldoc entry for exec says " ..The exec function executes a system command and never returns--". Therefore i can assume that after it calls B.pl, the calling script will exit.

My intention is not to wait for B.pl to finish, ( ie, runs B.pl and the caller script itself exit ) therefore i should use exec? Any draw backs?
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

calling a shell script from perl

Hi all, Not sure if this is the right forum to post query regarding perl script. I have a perl script which internally calls a shell script. My problem is that the shell script should be passed command line arguments. I call a shell script from perl using: system("sript.sh"); How do... (3 Replies)
Discussion started by: gurukottur
3 Replies

2. Shell Programming and Scripting

Calling Winzip from perl script

Hi, I would like to invoke "Winzip" utility from a perl script, input the name of zip file and provide output path for unzipped files. Any pointers will be appreciated. Thanks (5 Replies)
Discussion started by: MobileUser
5 Replies

3. Shell Programming and Scripting

Calling Expect script in Perl...

I call a EXPECT script from my perl script with machine IP and a FIle. The script logins to the machine and exports the value. The values to be exported or stored in a file. I have close to 10 machines and I have created 10 files and pass the corresponding files in command line, Now I could like... (4 Replies)
Discussion started by: ramkriz
4 Replies

4. Shell Programming and Scripting

Calling a shell script from a perl script

Hi, I have one shel script which returns some value and I am calling this shell script from a perl script which needs the out put/return value of shell script. But I don't know how to collect the output/return value of the shell script. Can any one give some idea on it? For example: The... (1 Reply)
Discussion started by: siba.s.nayak
1 Replies

5. Shell Programming and Scripting

Calling 3 perl script from one

hi all, I have 3 perl scripts a.pl,b.pl and c.pl each of these work when i pass a date for eg: perl c.pl 2010-05-27 now i want to write a perl script that would call the 3 scripts and make it run all the 3 scripts (a.pl,b.pl,c.pl) parallelly rather than 1 after the other....... pls... (2 Replies)
Discussion started by: siva_nagarajan
2 Replies

6. Shell Programming and Scripting

Calling a Perl script in a Bash script -Odd Situation

I am creating a startup script for an application. This application's startup script is in bash. It will also need to call a perl script (which I will not be able to modify) for the application environment prior to calling the application. The problem is that this perl script creates a new shell... (5 Replies)
Discussion started by: leepet01
5 Replies

7. Shell Programming and Scripting

calling a perl script with arguments from a parent perl script

I am trying to run a perl script which needs input arguments from a parent perl script, but doesn't seem to work. Appreciate your help in this regard. From parent.pl $input1=123; $input2=abc; I tried calling it with system("/usr/bin/perl child.pl $input1 $input2"); and `perl... (1 Reply)
Discussion started by: grajp002
1 Replies

8. Shell Programming and Scripting

How we can pass the argument when calling shell script from perl script

Can someone let me know how could I achieve this In one of per script I am calling the shell script but I need to so one thing that is one shell script call I need to pass pne argument.In below code I am calling my ftp script but here I want to pass one argument so how could I do this (e.g:... (5 Replies)
Discussion started by: anuragpgtgerman
5 Replies

9. Shell Programming and Scripting

calling a shell script present on another server using perl script.

Hi, I am working on a sever A. I want to write a perl script to execute a shell script persent on the server B. please help me in this. thanks in advance. (3 Replies)
Discussion started by: anandgodse
3 Replies

10. Shell Programming and Scripting

Calling perl from shell script

I am calling a perl script from shell script. $ cat mah_appln_bkp_oln.ksh #!/bin/ksh . /udb/home/udbappln/.profile . /udb/home/udbappln/sqllib/db2profile Com=/udb/udbappln/utility/systemscripts/currentUMR perl $Com/backup.pl -d dbname --tsm --purgetsmcopies 21 --purgetsmlogs exit 0 ... (1 Reply)
Discussion started by: ilugopal
1 Replies

LEARN ABOUT DEBIAN

matcherrc2perlfilter

MATCHERRC2PERLFILTER.PL(1)				User Contributed Perl Documentation				MATCHERRC2PERLFILTER.PL(1)

NAME

       matcherrc2perlfilter -- Conversion of matcherrc rules to perl

DESCRIPTION

       This script converts matcherrc filtering rules into perl_filter rules for usage with the claws-mail-perl-filter plugin of the Claws Mail
       mailer.

USAGE

       matcherrc2perlfilter

       No arguments required. Conversion is done for current user only.

FILES

       $HOME/.claws-mail/matcherrc
	 Input file where standard filtering rules lie.

       $HOME/.claws-mail/perl_filter
	 Output file written by this script. Converted rules are appended if the file already exists, so be careful when running the script more
	 than once.

BUGS

       This conversion script doesn't produce nice Perl code and is just intended to get you started. If you choose to use the Perl plugin,
       consider rewriting your rules.

SEE ALSO

       claws-mail-perl-filter(1), claws-mail(1)

AUTHOR

       This manual page was written by Ricardo Mones <mones@debian.org>, for the Debian GNU/Linux system (but may be used by others).  The
       matcherrc2perlfilter was written by Holger Berndt <berndth@gmx.de>.

perl v5.14.2							    2012-11-17						MATCHERRC2PERLFILTER.PL(1)
All times are GMT -4. The time now is 10:26 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy