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Top Forums Shell Programming and Scripting Selective multiplication of two columns in two files Post 302578752 by itkamaraj on Friday 2nd of December 2011 08:41:32 AM
Old 12-02-2011
Code:
$ cat file1
BB152   6.279650E+02
AA124   6.279650E+02

$ cat file2
AA124  6.0273E-01 9.7800E-01
AA124  6.3239E-01 9.7800E-04
AA124  6.4585E-01 7.3839E-02
BB152  6.6250E-01 2.4450E-04
BB152  7.0932E-01 1.3496E-02
CC124  7.1378E-01 2.2690E-02
CC124  7.2279E-01 1.0758E-01
CC124  7.3574E-01 1.3692E-03

$ awk '{print $1}' file1 > file3 

$ fgrep -f file3 file2
AA124  6.0273E-01 9.7800E-01
AA124  6.3239E-01 9.7800E-04
AA124  6.4585E-01 7.3839E-02
BB152  6.6250E-01 2.4450E-04
BB152  7.0932E-01 1.3496E-02

 

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ZDIFF(1)						      General Commands Manual							  ZDIFF(1)

NAME
zcmp, zdiff - compare compressed files SYNOPSIS
zcmp [ cmp_options ] file1 [ file2 ] zdiff [ diff_options ] file1 [ file2 ] DESCRIPTION
Zcmp and zdiff are used to invoke the cmp or the diff program on files compressed via gzip. All options specified are passed directly to cmp or diff. If only file1 is specified, it is compared to the uncompressed contents of file1.gz. If two files are specified, their con- tents (uncompressed if necessary) are fed to cmp or diff. The input files are not modified. The exit status from cmp or diff is pre- served. SEE ALSO
cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1), gzip(1), gzexe(1) BUGS
Messages from the cmp or diff programs may refer to file names such as "-" instead of to the file names specified. ZDIFF(1)
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