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Top Forums Shell Programming and Scripting If string matches within 2 files, delete one file. Post 302349096 by sitney on Monday 31st of August 2009 05:40:22 AM
Old 08-31-2009
If string matches within 2 files, delete one file.

I have a directory with a large # of files and in each file I am looking to match a string in one file with a string in the subsequent n file(s). If there is a match between a string in one file and a string in the next n file(s) then delete the subsequent duplicate file(s). Here is sample input:
Code:
blake [ ~/scratch ]$ ls -l ???.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:23 aaa.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:23 bbb.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:23 ccc.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:23 ddd.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:24 eee.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:24 fff.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:24 ggg.txt

blake [ ~/scratch ]$ cat ???.txt
aabbcc
aabbcc
aabbcc
abcabc
abcabc
abc123
aabbcc

And the desired output is as follows (assuming that I set n to look at 7 files or more)

Code:
blake [ ~/scratch ]$ ls -l ???.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:23 aaa.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:23 ddd.txt
-rw-r--r--  1 blake  staff  7 Aug 31 16:24 fff.txt

Many thanks.
 

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groups(1)							   User Commands							 groups(1)

NAME
groups - print group membership of user SYNOPSIS
groups [user]... DESCRIPTION
The command groups prints on standard output the groups to which you or the optionally specified user belong. Each user belongs to a group specified in /etc/passwd and possibly to other groups as specified in /etc/group. Note that /etc/passwd specifies the numerical ID (gid) of the group. The groups command converts gid to the group name in the output. EXAMPLES
The output takes the following form: example% groups tester01 tester02 tester01 : staff tester02 : staff example% FILES
/etc/passwd /etc/group ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
group(4), passwd(4), attributes(5) SunOS 5.11 14 Sep 1992 groups(1)
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