Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

running shell command in Perl script

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting running shell command in Perl script
# 1  
Old 02-06-2010
running shell command in Perl script
Does not work.
Code:
#!/usr/bin/perl
$etcdir = 'ls -l /etc';
print $etcdir;
#END
------------result--------
#perl -w abc123.pl
ls -l /etc[root@localhost perl]
#

This method works.
Code:
#!/usr/bin/perl
$etcdir = system("ls -l /etc");
print $etcdir;
#END


how do i run commands directly without using system or exec ?

perl version is 5.8.8 built for i386-linux-thread-multi
# 2  
Old 02-06-2010
Quote:
Originally Posted by dplinux
Code:
#!/usr/bin/perl
$etcdir = 'ls -l /etc';
print $etcdir;
#END
------------result--------
#perl -w abc123.pl
ls -l /etc[root@localhost perl]
#

This method works.
[CODE]
It should be backtick actually...
Code:
$etcdir = `ls -l /etc`;

# 3  
Old 02-08-2010
Thanks the backticks work
Thanks the (` `) backticks worked.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Troubles running DB2 command in shell script via cron

Hi there, Now I'm facing error regarding running shell script via cron. The shell script which is required to get value from database. Below is the main part of shell script. #/bin/bash #connect to database(1) db2 connect to $database user xxxx using yyyy #set values from... (3 Replies)
Discussion started by: Rohan Kishibe
3 Replies

2. Solaris

Error during running sqlplus command from shell script in Solaris

I am using following code to connect to oracle database from solaris shell script. which will try thrice to connect the database ...at the 4rth atempt it will exir=t. count=0 while ; do sqlplus -s $usrname/$password@dbSID <<-EOF | tee $logfile WHENEVER OSERROR EXIT 9; WHENEVER SQLERROR... (4 Replies)
Discussion started by: millan
4 Replies

3. Shell Programming and Scripting

perl: Command works in terminal, but not in shell script

Hi, the following command works in the terminal no problem. samtools view -h rawlib.bam | perl -ne '{ @line = split( /\s+/ ); $match = 0; while( $line =~ /(\d+)M/g ) { $match = $match + $1 } if( $match >= 80 || $_ =~ /^\@/ ) { print $_ } }' | java -Xmx12G -jar... (8 Replies)
Discussion started by: jdilts
8 Replies

4. Shell Programming and Scripting

Shell script running command in different shell

Hi All, Is there any way where we can run few commands with different shell in a shell script ? Let's have an example below, My first line in script reads below, #!/bin/sh However due to some limitation of "/bin/sh" shell I wanted to use "/bin/bash" while executing few... (9 Replies)
Discussion started by: gr8_usk
9 Replies

5. UNIX for Dummies Questions & Answers

running command prompt executable file in shell script

hi i have file extentioned with test.vbs. i am able to run this file n execute through command promt but i dont know how to run in shell script example: file name is test.vbs which contains strSoundFile = "C:\windows\Media\Notify.wav" Set objShell = CreateObject("Wscript.Shell") strCommand... (5 Replies)
Discussion started by: atl@mav
5 Replies

6. Shell Programming and Scripting

URGENT: cron job not running the sqlplus command in shell script

cron job not running the sqlplus command in shell script but the shell script works fine from command line.. Cronjob: 5 * * * * /home/dreg/script.sh script.sh: #!/bin/ksh /oracle/u000/app/oracle/product/10204/GEN/bin/sqlplus -s <user>/<pass>@<sid/home/dreg/sqlscript.sh ... (18 Replies)
Discussion started by: Ikea
18 Replies

7. Shell Programming and Scripting

Perl script variable to read shell command

Solaris 10 Korn shell ksh, Hi there, I have figured out to get yesterday's date which is using the below command: TZ=GMT+24; date +%d-%b-%Y to get the format of 30-Sep-2008 and TZ=GMT+24; date +%Y%m%d to get the format of 20080930. I need this two format. In my perl script below I need... (4 Replies)
Discussion started by: bulkbiz
4 Replies

8. UNIX for Advanced & Expert Users

Invoking shell script with perl command.

Hi All, I am using the following command to invoke the shell script from a perl command. perl -i.bak -pe'BEGIN { $cmd = "/opt/coreservices/tomcat-5.5.9/bin/digest.sh -a sha"; } s/(password=")(*)/ $1.`$cmd $2|cut -d: -f2|tr -d "\n"` /e ' $CATALINA_HOME/conf/tomcat-users.xml I need... (1 Reply)
Discussion started by: nua7
1 Replies

9. Shell Programming and Scripting

perl - why is the shell script executed before the print command?

i'm writing some simple scripts to help me learn perl. why does the print command get called after the shell script is executed? the purpose of the shell script is to simply echo to the screen "script run". which is does, but before the print command, you can clearly see the shell script is... (3 Replies)
Discussion started by: mjays
3 Replies

10. Shell Programming and Scripting

perl command help in shell script

Hello friends , I need a help how to call the variable which has define in the shell script in the perl command line. example of the shell scrip : str="hell0" i want print the value of this variable in the perl command line. perl -e 'print $str' but this is not working . can... (2 Replies)
Discussion started by: venky_2_2000
2 Replies
Login or Register to Ask a Question