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Top Forums Shell Programming and Scripting Recursively grep for a pattern and print that whole word Post 302972976 by raokl on Thursday 12th of May 2016 10:06:06 AM
Old 05-12-2016
Recursively grep for a pattern and print that whole word

Hello Forum Members,

I am trying to write a script for a requirement where i have to recursively search for a pattern and replace it with the new string in run time from user inputs
Code:
 grep -ohr "[[:alpha:]]*.xyz.com[[:alpha:]]*" $HOME/source/group/ | sort | uniq  > $HOME/output.txt
  while read -r -u9 line;
  do
     echo "The URL that should have to be changed is $line ..., Please enter the new URL  "
     read $user_url
     echo " User Entered URL is $user_url ..."
     echo ""
     echo " Changing URL from $line to $user_url ..."
     grep -irwl '$line' $HOME/source/group/ | xargs sed -i 's/$line/$user_url/g'
  done 9< $HOME/output.txt;

but the issue with the above is

Code:
grep -ohr "[[:alpha:]]*.xyz.com[[:alpha:]]*" $HOME/source/group/ | sort | uniq  > $HOME/output.txt

this grep only prints for entries with *.xyz.com ( ex:abc.xyz.com) but i also have some entrites as dev-abc.xyz.com but it is getting them

Can some one please suggest me a better way to grep for all the entries




Moderator's Comments:
Mod Comment Please use code tags as required by forum rules!

Last edited by RudiC; 05-12-2016 at 01:46 PM.. Reason: Added code tags
 

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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)
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