02-26-2008
Find duplicate value comparing 2 files and create an output
I need a perl script which will create an output file after comparing two diff file in a directory path:
/export/home/abc/file1
/export/home/abc/file2
File Format: <IP>TAB<DeviceName><TAB>DESCRIPTIONS
file1:
10.1.2.1.3<tab>abc123def<tab>xyz.mm1.ppp.
#10.1.2.1.4<tab>abc345def<tab>xyz.mm2.ppp2.
10.1.2.1.5<tab>abc567def<tab>xyz.mm4.ppp3.
10.1.2.1.6<tab>abc789def<tab>xyz.mm5.ppp6.
#10.1.2.1.7<tab>abc009def<tab>xyz.mm9.ppp7
file2:
10.1.2.1.3<tab>abc123def<tab>xyz.mm1.ppp.
#10.1.2.1.4<tab>abc345def<tab>xyz.mm2.ppp2.
10.1.2.1.5<tab>abc009def<tab>xyz.mm7.ppp9
10.1.2.1.6<tab>abc567def<tab>xyz.mm4.ppp3.
#10.1.2.1.9<tab>abc009def<tab>xyz.mm9.ppp7
If IP and Device name both are match on both file1 and file2 then Out put file would say “duplicate IP and device found”. If just duplicate IP and or device found the output file will indicate “duplicate IP found” or “duplicate device found”
I don't care 3rd column; the script will look for match in 1st and/or 2nd column and must not ignore IP which has "#" in front of it.
OUTPUT:
Duplicate IP and device found:
10.1.2.1.3<tab>abc123def
#10.1.2.1.4<tab>abc345def
Duplicate IP Found:
10.1.2.1.6
10.1.2.1.5
Duplicate Device found
abc009def
Thank you very much. btw, this is not a home work.
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DIFF(1) General Commands Manual DIFF(1)
NAME
diff - differential file comparator
SYNOPSIS
diff [ -efbh ] file1 file2
DESCRIPTION
Diff tells what lines must be changed in two files to bring them into agreement. If file1 (file2) is `-', the standard input is used. If
file1 (file2) is a directory, then a file in that directory whose file-name is the same as the file-name of file2 (file1) is used. The
normal output contains lines of these forms:
n1 a n3,n4
n1,n2 d n3
n1,n2 c n3,n4
These lines resemble ed commands to convert file1 into file2. The numbers after the letters pertain to file2. In fact, by exchanging `a'
for `d' and reading backward one may ascertain equally how to convert file2 into file1. As in ed, identical pairs where n1 = n2 or n3 = n4
are abbreviated as a single number.
Following each of these lines come all the lines that are affected in the first file flagged by `<', then all the lines that are affected
in the second file flagged by `>'.
The -b option causes trailing blanks (spaces and tabs) to be ignored and other strings of blanks to compare equal.
The -e option produces a script of a, c and d commands for the editor ed, which will recreate file2 from file1. The -f option produces a
similar script, not useful with ed, in the opposite order. In connection with -e, the following shell program may help maintain multiple
versions of a file. Only an ancestral file ($1) and a chain of version-to-version ed scripts ($2,$3,...) made by diff need be on hand. A
`latest version' appears on the standard output.
(shift; cat $*; echo '1,$p') | ed - $1
Except in rare circumstances, diff finds a smallest sufficient set of file differences.
Option -h does a fast, half-hearted job. It works only when changed stretches are short and well separated, but does work on files of
unlimited length. Options -e and -f are unavailable with -h.
FILES
/tmp/d?????
/usr/lib/diffh for -h
SEE ALSO
cmp(1), comm(1), ed(1)
DIAGNOSTICS
Exit status is 0 for no differences, 1 for some, 2 for trouble.
BUGS
Editing scripts produced under the -e or -f option are naive about creating lines consisting of a single `.'.
DIFF(1)