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Full Discussion: best method of replacing multiple strings in multiple files - sed or awk? most simple preferred :)
Top Forums UNIX for Dummies Questions & Answers best method of replacing multiple strings in multiple files - sed or awk? most simple preferred :) Post 302448574 by Scott on Thursday 26th of August 2010 10:48:42 AM
Old 08-26-2010
Hi.

Then you can either use ed, or write to a temporary file:

Code:
function Replace
{
  ls | while read f; do
    sed 's/JAM/BUTTER/g;s/BREAD/CRACKER/g;s/SCOOP/FORK/g;s/SPREAD/SPLAT/g' "$f" > "$f".tmp && cp -f "$f".tmp "$f" && rm "$f".tmp
  done
}

To handle filenames with spaces, don't use a for-loop. Go with the while-loop.
Last edited by Scott; 08-26-2010 at 12:19 PM.. Reason: Removed wrong file
This User Gave Thanks to Scott For This Post:
rich@ardz
 

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LEARN ABOUT REDHAT

replace

REPLACE(1)						      General Commands Manual							REPLACE(1)

NAME

       replace	-  A utility program that is used by msql2mysql, but that has more general applicability as well. replace changes strings in place
       in files or on the standard input. Uses a finite state machine to match longer strings first. Can be used to swap strings.

USAGE

       replace [-?svIV] from to from to ... -- [files]

       or

       replace [-?svIV] from to from to ... < fromfile > tofile

SYNOPSIS

       replace [-?|-I] [-s] [-v]

DESCRIPTION

       replace

       -?|-I  info

       -s     silent

       -v     verbose

EXTRA INFO

       Special characters in from string:

       ^     Match start of line.

       $     Match end of line.

            Match space-character, start of line or end of line. For a end  the next replace starts locking at the end space-character.  A	
	      alone in a string matches only a space-character.

EXAMPLE

       this command swaps a and b in the given files:

       shell> replace a b b a -- file1 file2 ...

SEE ALSO

       isamchk	(1),  isamlog (1), mysqlaccess (1), mysqladmin (1), mysqlbug (1), mysqld (1), mysqldump (1), mysqlshow (1), msql2mysql (1), perror
       (1), replace (1), safe_mysqld (1), which1 (1), zap (1),

AUTHOR

       Ver 1.0, distribution 3.23.29a Michael (Monty) Widenius (monty@tcx.se), TCX Datakonsult AB (http://www.tcx.se).	This software  comes  with
       no  warranty.  Manual page by L. (Kill-9) Pedersen (kill-9@kill-9.dk), Mercurmedia Data Model Architect / system developer (http://www.mer-
       curmedia.com)

								 20 December 2000							REPLACE(1)
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