04-27-2011
Perl - search and replace a particular field
Hi,
I have a file having around 30 records. Each record has 5 fields delimited by PIPE. Few records in the file having Junk characters in the field2 and field4.
I found the junk charcter and I tested it and replace the junk with space with the command below
perl -i -p -e "s/\x00/ /g" <myfile>.
My requirement is I want to replace the Junks in the 2nd field only and should not replace junks in 4th field.
How to do this? Please help!!
Thanks,
Ramkrix
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UNTEX(1) General Commands Manual UNTEX(1)
NAME
untex - strip LaTeX comands from input
SYNOPSIS
untex [ options ] [ files ... ]
DESCRIPTION
Untex removes some LaTeX commands from the files listed in the arguments (or standard input) and prints the output to standard output.
OPTIONS
- read from standard input.
-o remove options to LaTeX commands, i. e. everything in brackets [] behind a command.
-i process "include{file}" and "input{file}" and "input file" commands.
-m (try to) remove all math code.
-u replace all "a (etc.) with ibm (CP850) characters.
-uiso replace all "a (etc.) with ISO characters.
-uascii
replace all "a (etc.) with ascii characters.
-g replace all "a (etc., from german.sty) with ibm (CP850) characters.
-giso replace all "a (etc., from german.sty) with ISO characters.
-gascii
replace all "a (etc., from german.sty) with ascii characters.
-e remove environment names.
-a remove arguments of commands (not recommended).
-g implies -u, -a implies -o.
SEE ALSO
latex, tex, detex
BUGS
The -g and -u options only work for german accented characters. Not fixed due to lack of time, any help is appreciated. The includeonly
command is ignored.
Using -u option in a UTF-8 terminal doesn't work. Using it alone in a Latin1 terminal doesn't work either, you must also add -uiso.
AUTHORS
Untex was written by Michael Staats (michael@hal6000.thp.Uni-Duisburg.DE). The -gascii and -uascii options were added by Denis Endisch
(denis@smoky.ikf.physik.uni-frankfurt.de). Thanks to Subhasish Mazumdar (mazumdar@ringer.cs.utsa.edu) for some hints for improvements and
bug reports.
4th Berkeley Distribution Version 1.2 1994 April 6 UNTEX(1)