Sponsored Content
Full Discussion: How does egrep work?
Top Forums Shell Programming and Scripting How does egrep work? Post 302768399 by MadeInGermany on Friday 8th of February 2013 01:07:21 PM
Old 02-08-2013
The "|" in egrep is an "or".
It problably make more sense to convert to
Code:
ssh remote_machine df -h | awk 'NR==1 {header=$0 RS} $5~/[7-9][0-9]%|100%/ {print header $0; header=""}'

awk takes the same ERE as egrep, namely "[7-9][0-9]%|100%" but this operates on $5=column#5 only.
The main advantage is that it only prints the header (from NR=line#1) if needed.
This User Gave Thanks to MadeInGermany For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

egrep -f

Hi, i am using egrep -f. The file with the expressions is very big and if i make the file a lot smaller, it works fine. Only if i use the original file, witch has about 20.000 lines it doesn't seem to work. Is the file to big, or do i need more patience?? my command is: egrep -f... (2 Replies)
Discussion started by: tine
2 Replies

2. UNIX for Dummies Questions & Answers

help with egrep

I have a file called alert.log containing the following: WARNING: received KRVX_OPER_CANNOT_SUPPORT knlldmm: gdbnm=CROOP knlldmm: objn=23793 knlldmm: objv=1 knlldmm: scn=5189816456 knllgobjinfo: MISSING Streams multi-version data dictionary!!! knlldmm: gdbnm=FDROP knlldmm: objn=49385... (9 Replies)
Discussion started by: akDBA
9 Replies

3. UNIX for Dummies Questions & Answers

Script doesn't work, but commands inside work

Howdie everyone... I have a shell script RemoveFiles.sh Inside this file, it only has two commands as below: rm -f ../../reportToday/temp/* rm -f ../../report/* My problem is that when i execute this script, nothing happened. Files remained unremoved. I don't see any error message as it... (2 Replies)
Discussion started by: cheongww
2 Replies

4. UNIX for Dummies Questions & Answers

Egrep cheat sheet anywhere? Looking for meaning of egrep -c

Hi I've been searching google and have not found what egrep -c means. Does anyone know where I can get a cheat sheet or what that -c means? thanks, Linda (2 Replies)
Discussion started by: leelm
2 Replies

5. UNIX for Dummies Questions & Answers

search ")" with egrep - egrep: syntax error

Hi Guys, we have a shell script which basically query the Database which retrieves huge data and use the data with "egrep" . Now there is some data which contains characters like "abc)" and the same is used like below : "egrep (.+\|GDPRAB16\|GDPR/11702 96 abc)\|$ temp.txt" now while... (7 Replies)
Discussion started by: sagarjani
7 Replies

6. Shell Programming and Scripting

if [ -z echo foo | egrep -e 'regexp' != '' ] -> dont work

Hallo, I need to test a String (a special ip number-string). So I want to run that: ipadress=172.0.0.0 # for debugging: echo $ipadress | egrep -e '172\.?\.??\.??$' # the test that doesnt work if test -z `echo $ipadress | egrep -e '172\.?\.??\.??$'` != "" then echo "match" else... (1 Reply)
Discussion started by: wiseguy
1 Replies

7. Shell Programming and Scripting

egrep

Hi, I am wondering if it's possible to link multiple patterns with egrep. Here here is what I am doing : grep -v ";;" | grep -v ARC_TIME | grep -v \* | grep -v STAS0 Can I do all of this by invoking egrep just once ? Thanks (4 Replies)
Discussion started by: Aswex
4 Replies

8. Shell Programming and Scripting

Help with egrep

Hi, I need to search for a exact word in a file and I have a list of allowable values in a list file. I search something like this using egrep -f option: >egrep -f list.txt data.txt New New York NewYork > list.txt file has the allowable value for search and this file can be edited to... (5 Replies)
Discussion started by: calredd
5 Replies

9. Shell Programming and Scripting

My script work on Linux but not work in sunos.

My script work on Linux but not work in sun os. my script. logFiles="sentLog1.log sentLog2.log" intial_time="0 0" logLocation="/usr/local/tomcat/logs/" sleepTime=600 failMessage=":: $(tput bold)Log not update$(tput rmso) = " successMessage="OK" arr=($logFiles)... (7 Replies)
Discussion started by: ooilinlove
7 Replies

10. IP Networking

Discussion at work, would a router work pluging a cable in wan1 and lan1?

hi all. and sorry for the random question, but this sparkled a raging flame-war at work and i want more points of view situation a router, with linux of some sort, dhcp client requesting for ip in wan1 (as usual with wan ports) dhcp server listening in lan1, and assigning ip (as usual... (9 Replies)
Discussion started by: broli
9 Replies
Test::Inline::Content::Legacy(3pm)			User Contributed Perl Documentation			Test::Inline::Content::Legacy(3pm)

NAME
Test::Inline::Content::Legacy - Test::Inline 2 Content Handler for legacy functions SYNOPSIS
Custom script content generation using Test::Inline 2.000+ with a custom generator functions my $header = "...."; my $function = sub { my $Object = shift; my $Script = shift; return $header . $Script->merged_content; }; my $Inline = Test::Inline->new( ... file_content => $function, ); Migrating this same code to Test::Inline 2.100+ ContentHandler objects my $header = "...."; my $function = sub { my $Object = shift; my $Script = shift; return $header . $Script->merged_content; }; my $ContentHandler = Test::Inline::Content::Legacy->new( $function ); my $Inline = Test::Inline->new( ... ContentHandler => $ContentHandler, ); DESCRIPTION
This class exists to provide a migration path for anyone using the custom script generators in Test::Inline via the "file_content" param. The synopsis above pretty much says all you need to know. METHODS
new $CODE_ref The "new" constructor for "Test::Inline::Content::Legacy" takes a single parameter of a "CODE" reference, as you would have previously provided directly to "file_content". Returns a new "Test::Inline::Content::Legacy" object, or "undef" if not passed a "CODE" reference. coderef The "coderef" accessor returns the "CODE" reference for the object process $Inline $Script The "process" method works with the legacy function by passing the Test::Inline and Test::Inline::Script arguments straight through to the legacy function, and returning it's result as the return value. SUPPORT
See the main SUPPORT section. AUTHOR
Adam Kennedy <adamk@cpan.org>, <http://ali.as/> COPYRIGHT
Copyright 2004 - 2010 Adam Kennedy. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of the license can be found in the LICENSE file included with this module. perl v5.12.4 2010-11-22 Test::Inline::Content::Legacy(3pm)
All times are GMT -4. The time now is 06:06 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy