Sponsored Content
Top Forums Shell Programming and Scripting grep command to retrieve one file Post 302312568 by manish6725 on Saturday 2nd of May 2009 01:09:34 AM
Old 05-02-2009
this will print the first matching pattern of a file ..

sed -n '/John/{p;q;}' test1.txt
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to retrieve the typed command

For examples, I have typed 4 commands in the command prompt: ls -la rm -rf /home/user1 du -k /home find . -name "abc.out" -print And now I want to retrieve the command which begin with letter "r" (i.e. rm -rf /home/user1), what can I do? (5 Replies)
Discussion started by: laum
5 Replies

2. UNIX for Dummies Questions & Answers

retrieve text after grep

I am trying to search for a pattern in a file containing xml - When I match the search I want to retrieve all the text within the xml brackets.. Whats the best way to read in data between xml tags in a shell script? ie.. xml returned which I have in a file now is something like below:... (2 Replies)
Discussion started by: frustrated1
2 Replies

3. Shell Programming and Scripting

how to retrieve only the Use% value from df command

when I do a df -k for a particular mount i get the result like this Filesystem 1K-blocks Used Available Use% Mounted on /dev/ 4128448 3527496 391240 91% / I need to extract the value 91 from this and use it in my script in an if condition. How will i do it Please advice. (8 Replies)
Discussion started by: codeman007
8 Replies

4. UNIX for Dummies Questions & Answers

retrieve lines using sed, grep or awk

Hi, I'm looking for a command to retrieve a block of lines using sed or grep, probably awk if that can do the job. In below example, By searching for words "Third line2" i'm expecting to retrieve the full block starting with 'BEGIN' and ending with 'END' of the search. Example: ... (3 Replies)
Discussion started by: learning_linux
3 Replies

5. Shell Programming and Scripting

How to retrieve command line args one by on.

Hi, I have to store all the command line arguments into an array. I have the following code. ********************** #! /bin/sh set -A arr_no_updates i=1 while do arr_no_updates=$($i) echo ${arr_no_updates} i=$(($i+1)) done**************** (1 Reply)
Discussion started by: little_wonder
1 Replies

6. Shell Programming and Scripting

Retrieve logs generated in last 10 mins from a log file using 'grep' command

HI All, I have a log file where the logs will be in the format as given below: 2011-05-25 02:32:51 INFO PROCESS STARTING 2011-05-25 02:32:52 INFO PROCESS STARTED . . . I want to retrieve only the logs which are less than 5 mins older than current time using grep... (3 Replies)
Discussion started by: rvhg16
3 Replies

7. UNIX for Beginners Questions & Answers

awk command to retrieve record 23 and 89 from UNIX file

Hi Everyone, I am looking for awk command to retrieve only the record number 23 and record number 89 from a unix file? Please let me know what is the awk command for this? Regards Rakesh (1 Reply)
Discussion started by: rakeshp
1 Replies

8. Homework & Coursework Questions

awk command to retrieve record 23 and 89 from UNIX file

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: I am looking for awk command to retrieve only the record number 23 and record number 89 from a unix file?... (6 Replies)
Discussion started by: rakeshp
6 Replies

9. UNIX for Beginners Questions & Answers

How to search a text in file and retrieve required lines following it with UNIX command?

I have requirement to search for a text in the file and retrieve required lines that is user defined with unix command. Eg: Find the text UNIX in the below file and need to return Test 8 & Test 9 Test 1 Test 2 Test 3 Test 4 UNIX Test 5 Test 6 Test 7 Test 8 Test 9 Result can... (8 Replies)
Discussion started by: Arunkumarsak4
8 Replies

10. UNIX for Beginners Questions & Answers

Grep: Retrieve two strings from one file to find them anyone on line in another file

I am having trouble matching *two* strings from one file anywhere in a line of a second file, and could use some help getting this figured out. My preference would be to use grep for this because I would like to take advantage of its -A option. The latter is due to the fact that I would like both... (2 Replies)
Discussion started by: jvoot
2 Replies
PTARGREP(1)						 Perl Programmers Reference Guide					       PTARGREP(1)

NAME
ptargrep - Apply pattern matching to the contents of files in a tar archive SYNOPSIS
ptargrep [options] <pattern> <tar file> ... Options: --basename|-b ignore directory paths from archive --ignore-case|-i do case-insensitive pattern matching --list-only|-l list matching filenames rather than extracting matches --verbose|-v write debugging message to STDERR --help|-? detailed help message DESCRIPTION
This utility allows you to apply pattern matching to the contents of files contained in a tar archive. You might use this to identify all files in an archive which contain lines matching the specified pattern and either print out the pathnames or extract the files. The pattern will be used as a Perl regular expression (as opposed to a simple grep regex). Multiple tar archive filenames can be specified - they will each be processed in turn. OPTIONS
--basename (alias -b) When matching files are extracted, ignore the directory path from the archive and write to the current directory using the basename of the file from the archive. Beware: if two matching files in the archive have the same basename, the second file extracted will overwrite the first. --ignore-case (alias -i) Make pattern matching case-insensitive. --list-only (alias -l) Print the pathname of each matching file from the archive to STDOUT. Without this option, the default behaviour is to extract each matching file. --verbose (alias -v) Log debugging info to STDERR. --help (alias -?) Display this documentation. COPYRIGHT
Copyright 2010 Grant McLean <grantm@cpan.org> This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2014-09-30 PTARGREP(1)
All times are GMT -4. The time now is 05:12 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy