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Full Discussion: How to compare two columns and retrieve data
Top Forums UNIX for Dummies Questions & Answers How to compare two columns and retrieve data Post 302541733 by bjorngill on Monday 25th of July 2011 01:05:34 PM
Old 07-25-2011
Thank you for your reply. I converted the file to unix newlines and tried awk command. I am having trouble in getting the output.
$ file problem.txt
problem.txt: ASCII text, with CR line terminators
$ sed -e 's/\r$//' problem.txt > problem2.txt
$ file problem2.txt
problem2.txt: ASCII text, with CR, LF line terminators
$awk '{ a[$1] = $1 } $5 == a[$5]' problem2.txt > ans.txt

# This gives me an empty ans.txt file. I would like to write all the data for these matching columns as an output.

Thank you
 

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ps2ascii

PS2ASCII(1)							 Ghostscript Tools						       PS2ASCII(1)

NAME

       ps2ascii - Ghostscript translator from PostScript or PDF to ASCII

SYNOPSIS

       ps2ascii [ input.ps [ output.txt ] ]
       ps2ascii input.pdf [ output.txt ]

DESCRIPTION

       ps2ascii  uses  gs(1) to extract ASCII text from PostScript(tm) or Adobe Portable Document Format (PDF) files. If no files are specified on
       the command line, gs reads from standard input; but PDF input must come from an explicitly-named file, not standard input.   If	no  output
       file is specified, the ASCII text is written to standard output.

       ps2ascii  doesn't  look at font encoding, and isn't very good at dealing with kerning, so for PostScript (but not currently PDF), you might
       consider pstotext (see below).

FILES

       Run "gs -h" to find the location of Ghostscript documentation on your system, from which you can get more details.

SEE ALSO

       pstotext(1), http://www.research.digital.com/SRC/virtualpaper/pstotext.html

VERSION

       This document was last revised for Ghostscript version 8.70.

AUTHOR

       Artifex Software, Inc. are the primary maintainers of Ghostscript.  David M. Jones <dmjones@theory.lcs.mit.edu> made  substantial  improve-
       ments to ps2ascii.

8.70								   31 July 2009 						       PS2ASCII(1)
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