Visit Our UNIX and Linux User Community

Top Forums Shell Programming and Scripting Perl: How to check whether my array contains element x Post 302757205 by bartus11 on Thursday 17th of January 2013 07:45:54 AM
Old 01-17-2013
You don't need to create your own subroutine for that. Just use "grep":
Code:
grep {$_ eq $entityName} @array_to_be_checked;

This User Gave Thanks to bartus11 For This Post:
 
Test Your Knowledge in Computers #47
Difficulty: Easy
Von Neumann is considered to be the 'Father of Computing'.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl delete an element from array

Probably I am not seeing it or I am not using the "delete" correctly I had the following codes but it does not work for me #!/bin/perl -w ... @sysFile1 = (a_b, a_c, a_d); @sysFile2 = (a_c, a_e, b_f); foreach $line1 (@sysFile1){ trim(\$line1); (my $tmp1, my $tmp2) = split/_/,... (6 Replies)
Discussion started by: ahtat99
6 Replies

2. Shell Programming and Scripting

Remove an element from an array in PERL

Hello guys, I have the following question. Consider the following code in PERL for($xeAnumber=0; $xeAnumber<@xeAnumber; $xeAnumber++) { if(@xeAnumber==@final_file) { @final_file=@xeTimeStamp; }... (3 Replies)
Discussion started by: chriss_58
3 Replies

3. Shell Programming and Scripting

How to check index of a array element in shell script?

Example - Script to find the index of a month from array MONTHS="Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec" set -A MON $MONTHS A="Sun May 23 09:34:30 GMT 2010" getMonth=`echo $A|cut -c5-7` ##getMonth=May Arrayindex_in_MONTHS_array= ???? # { 0,1,2,3,4 } - at fifth place ... (7 Replies)
Discussion started by: KuldeepSinghTCS
7 Replies

4. Shell Programming and Scripting

Help! Yet another check element in array Question

Greetings, DISCLAIMER: My shell scripting is rusty so my question may be borderline stupid. You've been warned. I need to create a script that a) lists the content of zip files in a directory and b) sends out an `exception` report. My ZIP files contain a control file (for load check). I want... (2 Replies)
Discussion started by: alan
2 Replies

5. Shell Programming and Scripting

remove an element from array

I need to remove an element from the below array variable TABLENAME. #!/bin/ksh set -A TABLENAME "mirf roxar keke mirs" echo "the array is ${TABLENAME}" If i need to remove say keke and have the final TABLENAME as below, how this could be achieved. Pls throw some light. echo "Modified... (3 Replies)
Discussion started by: michaelrozar17
3 Replies

6. Shell Programming and Scripting

Perl: One action if an element doesn't exist in array

Hello, I want to run one (not multiple) action if an element doesn't exist in array. for example: @array = (1..10); foreach $el (@array) { if ($el != 11) { print "number not found\n"; } } the output of this simple script: number not found (3 Replies)
Discussion started by: ahmed_zaher
3 Replies

7. Shell Programming and Scripting

previous element in the array perl

Hi, How to get previous/next element in the array perl Example @queue = (1, 2 ,3 , 4); I want to get value of 1 and 2, or, 2 and 3, or 3 and 4...etc and compare to value which one is greater to do that I need to get previous and next element of array ? (1 Reply)
Discussion started by: guidely
1 Replies

8. Shell Programming and Scripting

Multiplying array element

I am trying to take all the elements of an array and multiply them by 2, and then copy them to a new array. Here is what I have i=0 for true in DMGLIST do let DMGSIZES2="${DMGSIZES}"*2 let i++ done unset i echo ${DMGSIZES2} It does the calculation correctly for the first element,... (7 Replies)
Discussion started by: nextyoyoma
7 Replies

9. UNIX for Advanced & Expert Users

Array Element

This question is for someone that's more familiar with Array Element. I need to know if the maximum array element that can be assigned is 1024 and if its so, Is there a workaround solution when the counter exceeded 1024? param_array="$param_nam" counter=$counter+1 #to avoid space... (3 Replies)
Discussion started by: cumeh1624
3 Replies

10. Shell Programming and Scripting

Awk: check element in array and it's value

Hello, I want to see if element exists in array, if so then, check it's corresponding value. Column 4 is position and column 1 is the chromosome for it. There are duplicates for one position on one chromosome. I want to check if same position exists on different chromosome: Data... (8 Replies)
Discussion started by: genome
8 Replies
ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)

Featured Tech Videos

All times are GMT -4. The time now is 08:57 PM.
Unix & Linux Forums Content Copyright 1993-2021. All Rights Reserved.
Privacy Policy