Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: grep out unwanted lines
Top Forums Shell Programming and Scripting grep out unwanted lines Post 302405553 by bakunin on Friday 19th of March 2010 06:14:05 AM
Old 03-19-2010
What you are looking for is the "-f <file>" option of grep. Have a careful look into the neverending tome of Unix knowledge (for mere mortals: issue "man grep") and investigate how you could provide grep with a list of patterns from a file.

I hope this helps.

bakunin
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Filter unwanted lines

Hi All, I have the below input and i only want to filter out some un-wanted info from here. Expected output is below. Can somebody help ? The catch is that i want to grep those lines with term "k=" and lines with term "**" as the 1st column and "07" as the last column. And the number of... (15 Replies)
Discussion started by: Raynon
15 Replies

2. UNIX for Advanced & Expert Users

How to Remove the unwanted Blank Lines

I have a file with the below data, i would like to remove the end blank lines with no data. I used the below commands but could not able to succeed, could you please shed some light. Commands Used: sed '/^$/d' input.txt > output.txt grep -v '^$' input.txt > output.txt input.txt file... (5 Replies)
Discussion started by: Ariean
5 Replies

3. Shell Programming and Scripting

Remove unwanted lines

I have a .xml file, where i need some output. The xml file is like: Code: <?******?></ddddd><sssss>234</dfdffsdf><sdhjh>534</dfdfa>......... /Code I need the output like: code 234 534 . . . /code How can i do it? (5 Replies)
Discussion started by: anupdas
5 Replies

4. Shell Programming and Scripting

AIX equivalent to GNU grep's -B and -A [print lines after or before matching lines]

Hi folks I am not allowed to install GNU grep on AIX. Here my code excerpt: grep_fatal () { /usr/sfw/bin/gegrep -B4 -A2 "FATAL|QUEUE|SIGHUP" } Howto the same on AIX based machine? from manual GNU grep ‘--after-context=num’ Print num lines of trailing context after... (4 Replies)
Discussion started by: slashdotweenie
4 Replies

5. Shell Programming and Scripting

Print lines between two lines after grep for a text string

I have several very large file that are extracts from Oracle tables. These files are formatted in XML type syntax with multiple entries like: <ROW> some information more information </ROW> I want to grep for some words, then print all lines between <ROW> AND </ROW>. Can this be done with AWK?... (7 Replies)
Discussion started by: jbruce
7 Replies

6. Shell Programming and Scripting

Perl XML, find matching condition and grep lines and put the lines somewhere else

Hi, my xml files looks something like this <Instance Name="New York"> <Description></Description> <Instance Name="A"> <Description></Description> <PropertyValue Key="false" Name="Building A" /> </Instance> <Instance Name="B"> ... (4 Replies)
Discussion started by: tententen
4 Replies

7. Shell Programming and Scripting

AWK/GREP: grep only lines starting with integer

I have an input file 12.4 1.72849432773174e+01 -7.74784188610632e+01 12.5 9.59432114416327e-01 -7.87018212757537e+01 15.6 5.20139995965960e-01 -5.61612429666624e+01 29.3 3.76696387248366e+00 -7.42896194101892e+01 32.1 1.86899877018077e+01 -7.56508762501408e+01 35 6.98857157014640e+00... (2 Replies)
Discussion started by: chrisjorg
2 Replies

8. Shell Programming and Scripting

Grep couple of consecutive lines if each lines contains certain string

Hello, I want to extract from a file like : 20120530025502914 | REQUEST | whatever 20120530025502968 | RESPONSE | whatever 20120530025502985 | RESPONSE | whatever 20120530025502996 | REQUEST | whatever 20120530025503013 | REQUEST | whatever 20120530025503045 | RESPONSE | whatever I want... (14 Replies)
Discussion started by: black_fender
14 Replies

9. Shell Programming and Scripting

get rid of unwanted lines

Hi , My output contains the below contents When i execute df -h | grep / | grep -v '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }' i get output as below tpshghghg.fgh.com:/vol/scmvol1/scm-vobstore/WebArch.vbs 1.7T 1.3T 452G 74% /vob/WebArch... (6 Replies)
Discussion started by: ptappeta
6 Replies

10. Shell Programming and Scripting

awk prints unwanted new lines

Hello, I need a little help with the following: I'm using AWK to read input from a comma-seperated value file, and only printing certain fields like so: awk -F "," '{print $1,$3,$6}' /list.csv | tail -1 Which outputs the following: server1 APPID OS I run into a problem... (8 Replies)
Discussion started by: LinuxRacr
8 Replies

LEARN ABOUT POSIX

zgrep

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)
All times are GMT -4. The time now is 06:39 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy