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Top Forums Shell Programming and Scripting Passing in regular expression as a parameter to sed Post 302543883 by aigles on Tuesday 2nd of August 2011 10:40:45 AM
Old 08-02-2011
Works fine for me (on AIX box) :
Code:
$ cat sat.ksh
while IFS='|' read file search_string replace_string
do
    sed -e "s/${search_string}/${replace_string}/g"  ${file} > ${file}.tmp && \
    mv ${file}.tmp ${file}
done <sat.dat
$ cat sat.xml
<rmi-port>13093</rmi-port>
$ cat sat.dat
sat.xml|^<rmi-port>[0-9][0-9]|<rmi-port>18
$ ./sat.ksh
$ cat sat.xml
<rmi-port>18093</rmi-port>
$

Jean-Pierre.
 

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COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME
colrm -- remove columns from a file SYNOPSIS
colrm [start [stop]] DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read from the standard input. Output is written to the standard output. If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec- ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not zero. Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one. ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7). EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs. SEE ALSO
awk(1), column(1), cut(1), paste(1) HISTORY
The colrm command appeared in 3.0BSD. BSD
August 4, 2004 BSD
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