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Top Forums UNIX for Dummies Questions & Answers Replacing "." with "GG" in a certain column of a file that has heading Post 302928486 by kush on Friday 12th of December 2014 05:52:27 AM
Old 12-12-2014
Replacing "." with "GG" in a certain column of a file that has heading

Hi, all, I have a file that looks like:
Code:
## XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX                              
## YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY                                            
#AA    AB    AC    AD    AE    AF    AG    AH    AI    AJ    AK    AL
20    60039    60039    T    C    1000    PASS    .    .    0|0    0|0    0|0
20    60097    60097    G    A    999    PASS    .    .    0|0    0|0    0|0

The file has two lines starting with ## - heading lines (## XXX and ## YYY). Third line from above starting with # - indicate names of the columns (AA, AB etc). And the rest of the lines - are values.

I need to replace "." to "GG" in the 9th column AI.
Heading should stay unchanged. File is lets say, tab-delimited.

Thank u for ur suggestion!
best, kush

Last edited by Scrutinizer; 12-13-2014 at 09:13 AM.. Reason: Modified incorrectly put code tags
 

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GSLP(1) 							    Ghostscript 							   GSLP(1)

NAME
gslp - Format and print text using ghostscript gsbj - Format and print text for BubbleJet printer using ghostscript gsdj - Format and print text for DeskJet printer using ghostscript gsdj500 - Format and print text for DeskJet 500 BubbleJet using ghostscript gslj - Format and print text for LaserJet printer using ghostscript SYNOPSIS
gslp -12BclqRr -b<header> -f<font> -F<hfont> -L<lines> -p<outfile> -T<n> --add-to-space <units> --add-to-width <units> --columns <n> --detect --first-page <n> --kern <file.afm> --last-page <n> --(heading|footing)-(left|center|right) <string> --margin-(top|bot- tom|left|right) <inches> --no-eject-(file|formfeed) --spacing <n> [gs options] [files] gsbj [options] [files] gsdj [options] [files] gsdj500 [options] [files] gslj [options] [files] DESCRIPTION
This utility provides functionality approximately equivalent to the Unix enscript(1) program. It prints plain text files using a single font. It currently handles tabs and formfeeds, but not backspaces. It will line-wrap when using fixed-pitch fonts. It will also do kern- ing and width adjustment. The default device (-sDEVICE=) and resolution (-r) are as follows: gslp epson 180 gsbj bj10e 180 gsdj deskjet 300 gsdj500 djet500 300 gslj laserjet 300 By default the current date is formatted as the center header. OPTIONS
Standard switches implemented: -12BclqRr -b<header> -f<font> -F<hfont> -L<lines> -p<outfile> Sun switches implemented: -T<n> set tab width Switches ignored: -GghKkmow -# -C -d -J -n -P -S -s -t -v Switches added: --add-to-space <units> add the given number of 1/72" units to the width of each space (may be negative) --add-to-width <units> add the given number of 1/72" units to the width of each character (may be negative) --columns <n> print in <n> columns --detect treat the file as PostScript if it starts with %! --first-page <n> start printing at page <n> --kern <file.afm> kern using information from the given .AFM file --last-page <n> stop printing after page <n> --(heading|footing)-(left|center|right) <string> set the heading/footing fields; use -B first to clear --margin-(top|bottom|left|right) <inches> set a margin --no-eject-(file|formfeed) end-of-file/FF only starts a new column, not a new sheet --spacing <n> use double (n=2), triple (n=3), etc. spacing Also, the string %# in a heading or footing is replaced with the page #. SEE ALSO
gs(1) VERSION
This document was last revised for Ghostscript version 8.70. AUTHOR
Artifex Software, Inc. are the primary maintainers of Ghostscript. This manpage by George Ferguson. 8.70 31 July 2009 GSLP(1)
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