awk with two files Post: 302377189

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awk command to compare a file with set of files in a directory using 'awk'

Hi, I have a situation to compare one file, say file1.txt with a set of files in directory.The directory contains more than 100 files. To be more precise, the requirement is to compare the first field of file1.txt with the first field in all the files in the directory.The files in the...

LEARN ABOUT NETBSD

comm

COMM(1) 						    BSD General Commands Manual 						   COMM(1)

NAME

     comm -- select or reject lines common to two files

SYNOPSIS

     comm [-123f] file1 file2

DESCRIPTION

     The comm utility reads file1 and file2, which should be sorted lexically, and produces three text columns as output: lines only in file1;
     lines only in file2; and lines in both files.

     The filename ``-'' means the standard input.

     The following options are available:

     -1      Suppress printing of column 1.

     -2      Suppress printing of column 2.

     -3      Suppress printing of column 3.

     -f      Fold case in line comparisons.

     Each column will have a number of tab characters prepended to it equal to the number of lower numbered columns that are being printed.  For
     example, if column number two is being suppressed, lines printed in column number one will not have any tabs preceding them, and lines
     printed in column number three will have one.

     comm assumes that the files are lexically sorted; all characters participate in line comparisons.

EXIT STATUS

     comm exits 0 on success, >0 if an error occurred.

SEE ALSO

     cmp(1), diff(1), sort(1), uniq(1)

STANDARDS

     The comm utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').

BSD
								   June 6, 1993 							       BSD

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Splitting input files into multiple files through AWK command

Discussion started by: arund_01

2. Shell Programming and Scripting

Merge files of differrent size with one field common in both files using awk

Discussion started by: shashi1982

3. UNIX for Dummies Questions & Answers

Using Awk within awk to read all files in directory

Discussion started by: flevongo

4. Shell Programming and Scripting

Awk : too many files 10

Discussion started by: prabuk1