Sponsored Content
Full Discussion: Grepping characters
Top Forums Shell Programming and Scripting Grepping characters Post 302309820 by devtakh on Thursday 23rd of April 2009 01:56:53 AM
Old 04-23-2009
assuming there will always be more than 7 characters after the match string


awk '$0 ~ /RSTD3R0/{match($0,"RSTD3R0");print substr($0,RSTART+RLENGTH,7)}' file


cheers,
Devaraj Takhellambam
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

grepping the first 3 characters from a file

Hi I was wondering if it's possible to use a command to get the first 3 characters of a line in a text file, I tried grep but it returns the whole line but I am only interested in the first 3 characters. Is this possible with grep or I need any other command? Also is it possible deleting from... (2 Replies)
Discussion started by: g-e-n-o
2 Replies

2. UNIX for Dummies Questions & Answers

grepping the first 3 characters from a file

give this a try and let me know if it works grep '^' filename rachael (2 Replies)
Discussion started by: rachael
2 Replies

3. UNIX for Dummies Questions & Answers

grepping

Is there a way to grep for something and then print out 10 lines after it. for example if I want to grep for a word, then output the following 10 or whatever number of lines after the word. (5 Replies)
Discussion started by: eloquent99
5 Replies

4. Shell Programming and Scripting

grepping around

Using shell scripts, I use grep to find the word “error” in a log file: grep error this.log. How can I print or get the line 3 lines below the line that word “error” is located? Thanks in advance for your response. (9 Replies)
Discussion started by: cbeauty
9 Replies

5. Shell Programming and Scripting

Grepping issue..

I found another problem with my disk-adding script today. When looking for disks, I use grep. When I grep for the following disk sizes: 5242880 I also pick up these as well: 524288000 How do I specifically pick out one or the other, using grep, without resorting to the -v option? ... (9 Replies)
Discussion started by: LinuxRacr
9 Replies

6. Shell Programming and Scripting

Please help on grepping

Hi All, I have a log file and I want to parse the logfile with a script.A sample text is shown below: I would grep on "return code " on this file. Any idea how the lines above and below the grep patterns could also be extracted. Thanks! nua7 The runLoggingInstall return code is 0... (3 Replies)
Discussion started by: nua7
3 Replies

7. Shell Programming and Scripting

Grepping for hex characters - explanation?

Hello, Yesterday I was looking for a way to grep for a tab in the shell, and found this solution in several places: grep $'a' # Grep for the letter 'a' between two tabs I'm fine with most of this, but I don't understand what the $ (dollar sign) before the first quote does. It doesn't work... (7 Replies)
Discussion started by: mregine
7 Replies

8. Shell Programming and Scripting

sed replacing specific characters and control characters by escaping

sed -e "s// /g" old.txt > new.txt While I do know some control characters need to be escaped, can normal characters also be escaped and still work the same way? Basically I do not know all control characters that have a special meaning, for example, ?, ., % have a meaning and have to be escaped... (11 Replies)
Discussion started by: ijustneeda
11 Replies

9. Shell Programming and Scripting

Grepping in Perl

Hello Friends, I have a password file at /etc/password.bak in which the fields are present in the below format i.e. each field is seperated by ":" vbjr3:x:1007:1007:student users:/home/vbjr3:/bin/bash dbhyt2:x:1008:1008:student users:/home/dbhyt2:/bin/bash bbwe3:x:1009:1009:student... (1 Reply)
Discussion started by: Ravi Tej
1 Replies

10. Shell Programming and Scripting

Outputting characters after a given string and reporting the characters in the row below --sed

I have this fastq file: @M04961:22:000000000-B5VGJ:1:1101:9280:7106 1:N:0:86 GGGGGGGGGGGGCATGAAAACATACAAACCGTCTTTCCAGAAATTGTTCCAAGTATCGGCAACAGCTTTATCAATACCATGAAAAATATCAACCACACCA +test-1 GGGGGGGGGGGGGGGGGCCGGGGGFF,EDFFGEDFG,@DGGCGGEGGG7DCGGGF68CGFFFGGGG@CGDGFFDFEFEFF:30CGAFFDFEFF8CAF;;8... (10 Replies)
Discussion started by: Xterra
10 Replies
BZGREP(1)						      General Commands Manual							 BZGREP(1)

NAME
bzgrep, bzfgrep, bzegrep - search possibly bzip2 compressed files for a regular expression SYNOPSIS
bzgrep [ grep_options ] [ -e ] pattern filename... bzegrep [ egrep_options ] [ -e ] pattern filename... bzfgrep [ fgrep_options ] [ -e ] pattern filename... DESCRIPTION
Bzgrep is used to invoke the grep on bzip2-compressed files. All 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 bzgrep is invoked as bzegrep or bzfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, bzgrep uses it as the grep program to be invoked. For example: for sh: GREP=fgrep bzgrep string files for csh: (setenv GREP fgrep; bzgrep string files) AUTHOR
Charles Levert (charles@comm.polymtl.ca). Adapted to bzip2 by Philippe Troin <phil@fifi.org> for Debian GNU/Linux. SEE ALSO
grep(1), egrep(1), fgrep(1), bzdiff(1), bzmore(1), bzless(1), bzip2(1) BZGREP(1)
All times are GMT -4. The time now is 07:13 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy