03-04-2009
compare two text files in a good format
I am writting a script where I have to Campare two text files.
I have 3 text files named by s_list, s_list_new and dmg_file. where I have to compare s_list and s_list_new and whatever the unique values are in s_list I have to add that in the dmg_file. And the values they are only in s_list_new and not in s_list I have to delete that from dmg_file
I have tried so many things, but diff, comm is not helping me because if i do comm it compares line by line and the value may not match line by line and with diff its not giving me exact output and I am thinking may be im not aware of different diff output formats.
for example if i do diff temp temp1 i get like this output and I dont want it. i just want thos unique values nothing else
diff temp temp1
1,5d0
< a
< 1
< 2
< 3
< 4
11c6,9
<
---
> 10
> 11
> 12
> 13
Any Help Plz
I will appreciate the help
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BZDIFF(1) General Commands Manual BZDIFF(1)
NAME
bzcmp, bzdiff - compare bzip2 compressed files
SYNOPSIS
bzcmp [ cmp_options ] file1 [ file2 ]
bzdiff [ diff_options ] file1 [ file2 ]
DESCRIPTION
Bzcmp and bzdiff are used to invoke the cmp or the diff program on bzip2 compressed files. All options specified are passed directly to
cmp or diff. If only 1 file is specified, then the files compared are file1 and an uncompressed file1.bz2. If two files are specified,
then they are uncompressed if necessary and fed to cmp or diff. The exit status from cmp or diff is preserved.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWbzip |
+--------------------+-----------------+
|Interface Stability | External |
+--------------------+-----------------+
SEE ALSO
cmp(1), diff(1), bzmore(1), bzless(1), bzgrep(1), bzip2(1)
BUGS
Messages from the cmp or diff programs refer to temporary filenames instead of those specified.
BZDIFF(1)