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Full Discussion: Speed : awk command to count the occurrences of fields from one file present in the other file
Top Forums Shell Programming and Scripting Speed : awk command to count the occurrences of fields from one file present in the other file Post 302915639 by SriniShoo on Thursday 4th of September 2014 04:56:03 AM
Old 09-04-2014
Quote:
Originally Posted by mdkm
@ SriniShoo SriniShoo
It will not be the case
that will not happen in the real time , so dont consider that scenario
Code:
awk 'NR == FNR {a[$1]; next} {for(x in a) {if($0 ~ "(^||)" x "(||$)") {a[x]++; next}}} END {for(x in a) print x, a[x]}' file1 file2

This User Gave Thanks to SriniShoo For This Post:
mdkm
 

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LEARN ABOUT SUSE

xzdiff

XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME

       xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files

SYNOPSIS

       xzcmp [cmp_options] file1 [file2]
       xzdiff [diff_options] file1 [file2]
       lzcmp [cmp_options] file1 [file2]
       lzdiff [diff_options] file1 [file2]

DESCRIPTION

       xzcmp  and  xdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options specified are passed
       directly to cmp or diff.  If only one file is specified, then the files compared are file1 (which must have a suffix of	a  supported  com-
       pression  format)  and  file1 from which the compression format suffix has been stripped.  If two files are specified, then they are uncom-
       pressed if necessary and fed to cmp(1) or diff(1).  The exit status from cmp or diff is preserved.

       The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.

SEE ALSO

       cmp(1), diff(1), xz(1), gzip(1), bzip2(1), zdiff(1)

BUGS

       Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.

Tukaani 							    2009-07-05								 XZDIFF(1)
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