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Top Forums Shell Programming and Scripting Regex and backreference to replace in binary file Post 302869665 by Don Cragun on Wednesday 30th of October 2013 05:13:28 PM
Old 10-30-2013
Quote:
Originally Posted by Ophiuchus
Hello Don,

Thanks for your help. It seems to work!

Is possible to do multiple replacements for example this to '\220-\233' '\300-\313' and '\100-\117' to '\040-\057' in a single command?

is possible to replace an hex string of more than one byte? for example ff4567 with 3A0013

Thanks again.
To do multiple ranges:
Code:
LC_ALL=POSIX tr '\100-\117\220-\233' '\040-\057\300-\313'<in_file >out_file

The tr utility translates characters or bytes; not strings or multi-byte sequences, and as I said before, tr isn't required to recognize hex. Look at the man page for tr on your system to determine if your tr utility has additional options or formats that may help you.
 

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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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