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Shell Programming and Scripting
awk read input files
Post 302352098 by danmero on Thursday 10th of September 2009 11:13:33 AM
09-10-2009
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Hi,
i have 2 files like f1 and f2
f1:
1
Note: some times it will be cahnged to 2 and 3.
f2:
1:20
2:30
4:50
6:70
8:90
3:20
1:30
1:40
output:
1:80
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#!/bin/awk -f
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LEARN ABOUT ULTRIX
cmp
cmp(1) General Commands Manual cmp(1) Name cmp - compare two files Syntax cmp [-l | -s] file1 file2 [ skip1 ] [ skip2 ] Description The command compares two files. If either file1 or file2 is `-', standard input is used for the file. With no options, makes no comment if the files are the same. If they differ, it reports the byte and line number at which the difference occurred to standard output. If one file is an initial subsequence of the other a message including the file name is written to standard error. The optional skip1 and skip2 parameters are initial byte offsets into file1 and file2 respectively and may be either octal, by specifying a leading 0, or decimal. When using skip1 and skip2 the offset is treated as the start of the respective input file. Only one option may be specified at a time. Only one of the input files may be standard input at a time. Because the line number is not calculated when using either of the options the use of either flag will increase the speed of Options -l Long format: prints the byte number (decimal) and the differing bytes (octal) for each difference. -s Suppresses normal output and sets the exit code only. Diagnostics Exit code 0 is returned for identical files, 1 for different files, and 2 for an inaccessible or missing argument. See Also comm(1), diff(1) cmp(1)