1. Shell Programming and Scripting

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)

2. Shell Programming and Scripting

Hi using the below cmd i am identifying wheether last character in each line in thousands of files as semicolon or not.If last character is semicolon i am removing semicolon .If last character is not semicolon then i am appending next line to present line . For example my input file consists of... (4 Replies)

3. Shell Programming and Scripting

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)

4. Shell Programming and Scripting

Hi, I have 3 arrays: @arr1=("Furthermore, apigenin treatment increased the level of association of the RNA binding protein HuR with endogenous p53 mRNA","one of the mechanisms by which apigenin induces p53 protein expression is enhancement of translation through the RNA binding protein... (1 Reply)

5. Shell Programming and Scripting

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)

6. Shell Programming and Scripting

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... (1 Reply)

7. Shell Programming and Scripting

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)

8. Shell Programming and Scripting

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)

9. Shell Programming and Scripting

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)

10. Shell Programming and Scripting

I have the following string : Cat dog fox catepillar bear foxy I need to replace "cat" and "fox" words from this sentence to word "animal" I do the following: $Str1="cat"; $Str2="fox"; $NewStr="animal"; open(F1, "<$inputFile") or die "Error: $!"; open(F2, ">$outputFile") or... (1 Reply)