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Full Discussion: Bash script to replace text file from a lookup file
Top Forums Shell Programming and Scripting Bash script to replace text file from a lookup file Post 302939097 by RudiC on Sunday 22nd of March 2015 03:42:11 PM
Old 03-22-2015
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Did you consider searching these fora for examples?

Your lookup file doesn't have any field separators, so a translation might run into trouble.
Given your table had <TAB> field separators,
Code:
grep $C file | cut -f2
computerA.testdomain.com

could do what you want. Use command substitution to assign to a variable.
 

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LEARN ABOUT XFREE86

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)
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