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Top Forums Shell Programming and Scripting Convert a 3 column tab delimited file to a matrix Post 302779575 by pamu on Wednesday 13th of March 2013 04:22:24 AM
Old 03-13-2013
Or..

Code:
$ awk '{A[$1,$2]=$3;B[$1]++;C[$2]++}END{for(i in C){s=s?s"\t"i:"\t"i}
print s;
for(i in B){s=i;
for(j in C){s=s"\t"A[j,i]}
print s}}' file

        a       b       c
a       1       2       4
b       2       1       7
c       4       7       1

This User Gave Thanks to pamu For This Post:
 

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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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