Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Grep pattern in PERL

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Grep pattern in PERL
# 1  
Old 09-21-2012
Grep pattern in PERL
Hi,
Can anyone tell me how this grep works?

Quote:

if ( $customers ) {
@filelist = grep { /$customers\.n/ } (@filelist);
}
Type of input is not known

Thanks in advance
# 2  
Old 09-21-2012
It will select all the elements from @filelist that contain "$cutomers" and replaces @filelist with that new list.
This User Gave Thanks to bartus11 For This Post:
irudayaraj
# 3  
Old 09-21-2012
Quote:
Originally Posted by bartus11
It will select all the elements from @filelist that contain "$cutomers" with extenstion ".n"and replaces @filelist with that new list.
Would like to add to above :
This User Gave Thanks to msabhi For This Post:
irudayaraj
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Grep -v lines starting with pattern 1 and not matching pattern 2

Hi all! Thanks for taking the time to view this! I want to grep out all lines of a file that starts with pattern 1 but also does not match with the second pattern. Example: Drink a soda Eat a banana Eat multiple bananas Drink an apple juice Eat an apple Eat multiple apples I... (8 Replies)
Discussion started by: demmel
8 Replies

2. Shell Programming and Scripting

sed and awk usage to grep a pattern 1 and with reference to this grep a pattern 2 and pattern 3

Hi , I have a file where i have modifed certain things compared to original file . The difference of the original file and modified file is as follows. # diff mir_lex.c.modified mir_lex.c.orig 3209c3209 < if(yy_current_buffer -> yy_is_our_buffer == 0) { --- >... (5 Replies)
Discussion started by: breezevinay
5 Replies

3. Shell Programming and Scripting

How to Grep than scan line below grep pattern

Hello Colleagues, I have a file that looks like below. 6-12731913-12731913 9230760143480 410018547148230 20131002193434+0500 20131002193434+0500 ;20131002T161031000-10.50.241.21-21912131-1419034760, ver: 0 20131009 92220056296730 CC0P abc Core_Context_R1A SMS 6-12726796-12726796... (14 Replies)
Discussion started by: umarsatti
14 Replies

4. Shell Programming and Scripting

How to grep a pattern in perl?

hello Everyone i am a newbie. i have a file which contains the following E:\gtmproj\script\i486_nt\obj\check_geomtools.exe: o:\portsrc\spg\system_1\i486_nt\advapps\TK-2\objmt\winclockmtq.lib E:\gtmproj\script\i486_nt\obj\check_geomtools.exe:... (12 Replies)
Discussion started by: Rashid Khan
12 Replies

5. Shell Programming and Scripting

Grep the word from pattern line and update in subsequent lines till next pattern line reached

Hi, I have got the below requirement. please suggest. I have a file like, Processing Item is: /data/ing/cfg2/abc.txt /data/ing/cfg3/bgc.txt Processing Item is: /data/cmd/for2/ght.txt /data/kernal/config.klgt.txt I want to process the above file to get the output file like, ... (5 Replies)
Discussion started by: rbalaj16
5 Replies

6. Shell Programming and Scripting

Want to grep for a pattern and display the content above that pattern

Hi, When we have a failure, sometimes we just step restart the job from the next step. Later when we open the log for analysis of the failure, it is becoming difficult to go to the failure part. For eg., if it is a 1000 line log, the failure may be at 500th line. so wat i want to do is, grep... (6 Replies)
Discussion started by: ajayakunuri
6 Replies

7. Shell Programming and Scripting

pattern grep using Perl in .TSV file

Hi All, I have a .TSV extension file having ~1 Gig data and I need to grep a pattern in that file using perl. I am not able to read the file using perl any suggestions on this/ If I Change the format my data gets mismangled so I am bothered about using specific format as well. #!... (3 Replies)
Discussion started by: vmsenthil
3 Replies

8. Shell Programming and Scripting

perl:: search for tow pattern and replace the third pattern

Hi i want to search two pattern on same line and replace onther pattern.. INPut file aaaa bbbbb nnnnnn ttttt cccc bbbbb nnnnnn ppppp dddd ccccc nnnnnn ttttt ffff bbbbb oooooo ttttt now i want replace this matrix like.. i want search for "bbbbb","nnnnnn" and search and replace for... (4 Replies)
Discussion started by: nitindreamz
4 Replies

9. Shell Programming and Scripting

Split a file based on pattern in awk, grep, sed or perl

Hi All, Can someone please help me write a script for the following requirement in awk, grep, sed or perl. Buuuu xxx bbb Kmmmm rrr ssss uuuu Kwwww zzzz ccc Roooowwww eeee Bxxxx jjjj dddd Kuuuu eeeee nnnn Rpppp cccc vvvv cccc Rhhhhhhyyyy tttt Lhhhh rrrrrssssss Bffff mmmm iiiii Ktttt... (5 Replies)
Discussion started by: kumarn
5 Replies

10. Shell Programming and Scripting

perl pattern matching vs. grep

I originally had a shell script that did a grep 10 times to pull out the number of times a certain pattern occured in a file: ie... aOccurances=`grep aPattern file|wc -l` bOccurances=`grep bPattern file|wc -l` ... ... ... fOccurances=`grep fPattern file|wc -l` As the file got bigger with... (0 Replies)
Discussion started by: junkmail426
0 Replies
Login or Register to Ask a Question