Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Help with perl eval command .....
Top Forums Shell Programming and Scripting Help with perl eval command ..... Post 302532231 by sarbjit on Monday 20th of June 2011 09:56:55 AM
Old 06-20-2011
Error Help with perl eval command .....
Hi All,

I read the above written code (perl code) in another perl script and evaluates this code for each line of text file,but using exit statement in code make this not to work and i could not get the desired results. However if i use return it works fine. I just need to know why it doesn't works with exit.

Code:
$flag = 0;
if(s/sa/Output/g) {
$flag = 1;
}
exit $flag;

Last edited by sarbjit; 06-20-2011 at 11:16 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

perl: eval and constants

is it possible to use eval to create constants in perl? i cannot seem to get anything to work, and my searches are turning up little to nothing. an example of what i am trying to do is this: 2 arrays: array 1: 'FOOD','NUMBER','OS' array 2: 'pizza','two','unix' loop through the arrays and... (5 Replies)
Discussion started by: effigy
5 Replies

2. Shell Programming and Scripting

redefine warning(Eval) in perl

Here is my perl Program: #!/usr/bin/perl -w my $a="sam"; my $b="ste"; my $c="abcdef"; my $d=931; $str=" @<<<<< @>>>>>>>>>> @|||||||||||||||||||| @######### \$a,\$b,\$c,\$d ."; open(FILE,">abc.txt"); $temp="format FILE = $str"; eval $temp; write FILE; print FILE "\n\n"; (3 Replies)
Discussion started by: sameerstephen
3 Replies

3. Shell Programming and Scripting

Access to database/eval command

Hi i have the following code: if(($line!=1) and (@field!='\$')){ print ( "\nTRY TO CONNECT TO DATABASE................\n"); my $dbh = DBI->connect($dsn, $user, $pass); print ("CONNECTED TO DATABASE\n"); eval ... (1 Reply)
Discussion started by: chriss_58
1 Replies

4. Shell Programming and Scripting

Replacement for eval in Perl??????

I used the eval command in shell programming for assigning a value to a stored value of a variable. Example: VAR="Unix_Id" eval $VAR="101" eval echo $"$VAR" How can i assign a value to a stored value of a variable in perl OR how i can write above code in Perl? I need your help... (4 Replies)
Discussion started by: kunal_dixit
4 Replies

5. Shell Programming and Scripting

Eval command help

I have file called myfile which has the text "myserver" in it. I need to have a command to ping "myserver". How would I do that? I tried when I type at the terminal I get the output as . How do I do something like a ? thanks, Nick (5 Replies)
Discussion started by: nikhilfake
5 Replies

6. Shell Programming and Scripting

Strange result of eval, how does eval really work with ssh?

Hi all, some small script with eval turned me to crazy. my OS is linux Linux s10-1310 2.6.16.53-0.8.PTF.434477.3.TDC.0-smp #1 SMP Fri Aug 31 06:07:27 PDT 2007 x86_64 x86_64 x86_64 GNU/Linux below script works well #!/bin/bash eval ssh remotehost date eval ssh remotehost ls below... (1 Reply)
Discussion started by: summer_cherry
1 Replies

7. Shell Programming and Scripting

Perl eval problem

Hello All, I am trying to use perl eval in a complex code and below given is a pseudo code of my logic. Here $result evalutes to empty. Please help.How should I retrieve of $t where $f just hold the name of varaible i.e t $t=10; $f='$t'; $result=eval "\$$f"; print "$result\n"; (3 Replies)
Discussion started by: prasperl
3 Replies

8. Shell Programming and Scripting

Error in eval eval command to print html tags

anyone has any info on why this is complaining??? vivek@vivek-c5e55ef2e ~/TAC $ zoneCounter=1 vivek@vivek-c5e55ef2e ~/TAC $ optUsage1=23% vivek@vivek-c5e55ef2e ~/TAC $ eval eval echo "<th>Zone $zoneCounter </th><th align=\"left\"> \$optUsage$zoneCounter </th>" -bash: syntax error... (1 Reply)
Discussion started by: vivek d r
1 Replies

9. Shell Programming and Scripting

Error in eval eval command to print html tags

anyone has any info on why this is complaining??? vivek@vivek-c5e55ef2e ~/TAC $ zoneCounter=1 vivek@vivek-c5e55ef2e ~/TAC $ optUsage1=23% vivek@vivek-c5e55ef2e ~/TAC $ eval eval echo "<th>Zone $zoneCounter </th><th align=\"left\"> \$optUsage$zoneCounter </th>" -bash: syntax error... (13 Replies)
Discussion started by: vivek d r
13 Replies

10. Shell Programming and Scripting

Usage of '-' in eval command.

Hi, I am trying to use eval command to evaluate a variable(HAPROXY_LISTENER_rabbitmq_project-test-BRHM_PORT) which consists of '-' but unfortunately the eval command is unable to interpret the value of variable and trims the variable name after '-' and produces the string output rather than the... (10 Replies)
Discussion started by: Kuldip
10 Replies

LEARN ABOUT FREEBSD

setcap

SETCAP(8)						      System Manager's Manual							 SETCAP(8)

NAME

       setcap - set file capabilities

SYNOPSIS

       setcap [-q] [-v] (capabilities|-|-r) filename [ ... capabilitiesN fileN ]

DESCRIPTION

       In  the	absence  of  the -v (verify) option setcap sets the capabilities of each specified filename to the capabilities specified.  The -v
       option is used to verify that the specified capabilities are currently associated with the file.

       The capabilities are specified in the form described in cap_from_text(3).

       The special capability string, '-', can be used to indicate that capabilities are read from the standard input. In such cases, the capabil-
       ity set is terminated with a blank line.

       The special capability string, '-r', is used to remove a capability set from a file.

       The -q flag is used to make the program less verbose in its output.

EXIT CODE

       The setcap program will exit with a 0 exit code if successful. On failure, the exit code is 1.

SEE ALSO

       cap_from_text(3), cap_set_file(3), getcap(8)

								 24th October 2008							 SETCAP(8)
All times are GMT -4. The time now is 12:00 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy