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Full Discussion: Search & Replacing text within a file
Top Forums Shell Programming and Scripting Search & Replacing text within a file Post 302568892 by macastor on Friday 28th of October 2011 02:07:17 PM
Old 10-28-2011
Search & Replacing text within a file
Hi all!
I'm a newbie and I'm writing a script which will ask a user for data to search. I will then search for this data using grep and displaying this data back to the screen for the user to see. The user will then enter new data to replace the data searched.

Now how do I replace this data within the file? SED, AWK???
grep search results for "JOE S SMITH":
#'s - Indicate spaces
730000146104218006JOE#S#SMITH#########5230 BRUNSWICK LN MACUNGIE

Replace with "TIM KIM":
730000146104218006TIM#KIM#############5230 BRUNSWICK LN MACUNGIE
or
Replace with "JEROMANIA K KALAMAZOO"
730000146104218006JEROMANIA#K#KALAMAZO5230 BRUNSWICK LN MACUNGIE

***** Data for Name starts at position 19 and ends at position 38 of this file. Replacement data CAN NOT go past position 38 ******
Last edited by macastor; 10-28-2011 at 06:43 PM..
 

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LEARN ABOUT MINIX

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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