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 is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, 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 zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses
it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)ZGREP(1)
Check Out this Related Man Page
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)
I have a huge file that I want to grep for the following:
the word "SEVERE" and today's month and date (Nov 16)
I then want to send the results of this grep to someone using mailx, as an atachment.
My question is how can I do this in one single line?
Thanks in advance. (18 Replies)
I have 2 files called stuff-egress-filter and stuff-ingress filter. There are also files called something like stuff-egress-F/0
I want to match the first two... I tried (i realize there is no filename... I'm piping this from the ls command)
grep stuff-*-filter
Finds nothing. If I... (18 Replies)
Hi ,
I used the floowing command in my script.
grep 'swi' file.txt | grep '^DEV' | cut -f 6 >> f.txt
Here file.txt contains fields of records.
My intension is to grep for the 3 letter 'swi' in one of filed, this field will contain swi as part of word.
And next grep is to grep for a 'DEV'... (18 Replies)
Hi frnds
i want to desplay file names that should be word1 and word2
ex :
i have 10 *.log files
5 files having word1 and word2
5 files having only word1,
i have used below command
egrep -l 'word1|word2' *.log
its giving all 10 files, but i want to display only 5... (20 Replies)
I am wondering if there is a way via grep and sed to extract a string that is on the 2nd line below a known marker as in this example:
TextRel 203 0 0 "WELL:"
SetPosAbs 1287 -6676
TextRel 210 0 0 "AEP #2"
The marker is WELL:, but the string I need is "AEP #2". Can grep/sed handle this... (19 Replies)
Hello guys - I am new to Unix.
I am trying to understand how to grep a perticular string in todays file?
I am trying this syntax but not getting what I am looking for:
% grep `date '+%d/%b/%Y'`
For instance there are 2 files generated today with same data. I am trying to find them and... (21 Replies)
Hello,
My input would be :
###Anything
int b,c,a;
int a,b,b;
###Anything
int c,d,c;
int k,l;
###ANYTHING
Many declarations interspersed with other statements. I am trying to find only the declarations where a line has a variable declared more than once.
The output for... (24 Replies)
I have requirement to prepare script which will grep for latest outofmemory message from the logs. I have used following command to grep the string from the logs,this script is not effective when logs are not getting updated as it will grep for old message.
f=catalina.out
var=`tail -10 $f |... (17 Replies)
Hello all,
searching on a text file (log file) is quite simple:
grep -i texttosearch filename | grep somethingWhat I'm trying to do is filter the result by TAG and remove the double entries.
Like if the log file contains the following text (fields are separated by commas):
... (18 Replies)
Hi ,I am trying to assign string to variable ,but it doesn't work
Also could you show me different ways to use grep,(I am trying to get the first,second and first column form file,and I am counting the chars)
let name=`grep "$id" product | cut -c6-20` (25 Replies)
Here is my code. What it does is it reads an input file (input.txt which contains roughly 2,000 search phrases) and searches a directory for files that contains the search phrase. The directory contains roughly 1900 files and 84 subdirectories. The output is a file (output.txt) that shows only the... (23 Replies)
I've got at least 30,000 XML files that I'm using the grep command to get their filename. Can I use the head command to grab just the beginning 8 lines and compare that instead of parsing the whole document? It would speed things up! or maybe grep -m? (49 Replies)
Hello Everyone!
I have updated the first post so that my intentions are easier to understand, and also attached sample files (post #18).
I have over 500 text files in a directory. Over 1 GB of data. The data in those files is organised in lines:
My intention is to return one line per... (23 Replies)
Hello
I am using a grep command with two patterns in my KSH script. File has line breaks in it and both the patterns are in different lines. Here is the command grep -l 'RITE AID.*ST.820' natriter820u.20140914
Pattern1 - RITE AID
Pattern2 - ST*820
I am not getting any results from... (24 Replies)
Hi,
I am printing the children of a process using this command:
ps -aef | grep 13783 | grep -v grep | grep -v ps | grep -v $0
and it shows the children correctly. (2 in my case)
The thing is that when I pipe it to awk to get the PIDs like this:
ps -aef | grep 13783 | grep -v grep |... (19 Replies)