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Top Forums Shell Programming and Scripting Compare two fields in text files? Post 302699759 by pulikoti on Wednesday 12th of September 2012 08:51:51 AM
Old 09-12-2012
Compare two fields in text files?

Hi,
I have two text files, compare column one in both the files and if it matches then the output should contain the id in column one, the number and the description.

Both the files are sorted. Is there a one liner to get this done, kindly help. Thank you

File 1:
NC_000964 92.33
NC_002570 91.07
NC_002745 97.34
NC_002758 97.40

File 2:
NC_002570 Bacillus chromosome, complete genome
NC_002745 Staphylococcus aureus complete genome
NC_002758 Staphylococcus aureus complete genome
NC_002951 Staphylococcus aureus complete genome

Output:
NC_002570 91.07 Bacillus chromosome, complete genome
NC_002745 97.34 Staphylococcus aureus complete genome

Last edited by pulikoti; 09-12-2012 at 10:03 AM..
 

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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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