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Full Discussion: comm with a variable
Top Forums Shell Programming and Scripting comm with a variable Post 77775 by gozer13 on Tuesday 12th of July 2005 06:56:03 PM
Old 07-12-2005
Computer comm with a variable

Hello all, I have two flat files that are colon delineated and I am trying to run a compare (Solaris v8 ksh) of $1 within a script to access a mysql database based on the results. Unix is telling me that it has to have physical file names. Is there a way to run a compare using variables? This is what I have tried. Thanks in advance for your responses.

$> comm -13 $( awk -F: '{ print $1 }' testfile.lst | sort | uniq ) $( awk -F: '{ print $1 }' testfile.lst.old | sort | uniq ) > results.lst
usage: comm [-123] file1 file2

then I tried:

$> file1=$( awk -F: '{ print $1 }' $testfile.lst | sort | uniq )
$> file2=$( awk -F: '{ print $1 }' $testfile.lst.old | sort | uniq )
$> comm -13 $file1 $file2 > results.lst
usage: comm [-123] file1 file2
 

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times(1)                                                           User Commands                                                          times(1)

NAME
times - shell built-in function to report time usages of the current shell SYNOPSIS
sh times ksh times DESCRIPTION
sh Print the accumulated user and system times for processes run from the shell. ksh Print the accumulated user and system times for the shell and for processes run from the shell. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
ksh(1), sh(1), time(1), attributes(5) SunOS 5.10 15 Apr 1994 times(1)
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