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Full Discussion: How to calculate average of two columns and copy into another file?
Top Forums Shell Programming and Scripting How to calculate average of two columns and copy into another file? Post 302870969 by balajesuri on Tuesday 5th of November 2013 09:33:51 AM
Old 11-05-2013
Code:
[user@host ~]$ ls -l file*
-rw-r--r-- 1 user group 25 Nov  5 19:59 file1
-rw-r--r-- 1 user group 20 Nov  5 19:59 file2
[user@host ~]$ cat test.sh
#! /bin/bash

for f in file*
do
    s1=0
    s2=0
    c=0
    while read c1 c2
    do
        s1=$(( s1 + c1 ))
        s2=$(( s2 + c2 ))
        (( c++ ))
    done < $f
    echo "Name: $f --> $(( s1 / c )) $(( s2 / c ))"
done
[user@host ~]$ ./test.sh
Name: file1 --> 55 99
Name: file2 --> 116 85
[user@host ~]$

 

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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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