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Top Forums Shell Programming and Scripting Compare files & extract column awk Post 302782101 by panyam on Monday 18th of March 2013 08:59:37 AM
Old 03-18-2013
Still it's not clear.

You want to do a line by comparison from file1 to file2?

something like the below sudo code?

Code:
for line1 in file1
do

file line2 in file2
do

if file1.fields <your comparison stuff> file2.fields --success
then
print file2 fields , file1 2nd column
else
print just file2 fields
fi

done

done

?
 

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PR(1)							      General Commands Manual							     PR(1)

NAME
pr - print file SYNOPSIS
pr [ option ... ] [ file ... ] DESCRIPTION
Pr produces a printed listing of one or more files on its standard output. The output is separated into pages headed by a date, the name of the file or a specified header, and the page number. With no file arguments, pr prints its standard input. Options apply to all following files but may be reset between files: -n Produce n-column output. +n Begin printing with page n. -b Balance columns on last page, in case of multi-column output. -d Double space. -en Set the tab stops for input text every n spaces. -h Take the next argument as a page header (file by default). -in Replace sequences of blanks in the output by tabs, using tab stops set every n spaces. -f Use formfeeds to separate pages. -ln Take the length of the page to be n lines instead of the default 66. -m Print all files simultaneously, each in one column. -n Number the lines of each file. -on Offset the left margin n character positions. -sc Separate columns by the single character c instead of aligning them with white space. A missing c is taken to be a tab. -t Do not print the 5-line header or the 5-line trailer normally supplied for each page. -wn For multi-column output, take the width of the page to be n characters instead of the default 72. SOURCE
/sys/src/cmd/pr.c SEE ALSO
cat(1), lp(1) PR(1)
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