Maybe you could try grep -vf file2 file1, or some such.
What kind of "database" does this come from? A relational one? i.e. could you not do select X from Y where X not in (select X from Z)?
2 different databases on different servers. I only have access to one, the other is from another service. I just printed with awk what i needed so that both files are formated the same way.
I ll try that
As for sorting out files well i thought about it but some entries will be missing in the middle of x file and both lines will be out of sync again so diff wouldn't work. I think.
And yes Don, I also need lines that are present in file2 but not in file1.
How would you make that associative array using awk? this sound interesting.
I ll let you know how it goes, meh
---------- Post updated at 06:44 AM ---------- Previous update was at 01:19 AM ----------
Quote:
Originally Posted by Don Cragun
Do you only want to find lines that are in file1 that are not in file2, or do you also want to find lines that are in file2 that are not in file1?
---------- Post updated at 04:42 PM ---------- Previous update was at 04:00 PM ----------
If you can't perform a select as Scott suggested, there are at least a couple of fairly straight-forward ways of handling this. The easiest may well be the best:
Sort then diff seems to do the trick althought i have a weird output in the middle column. > and < I understand but what that a ' | 'mean?
Hi
I want to archive the following all the files and directory like listed below:
$ ls -a
. .. .bash_history .bash_logout .bash_profile .bashrc .emacs .mysql_history public_html .viminfo
What I tried is to use the following command
$ gtar cvzf allmyfiles.tar.gz *
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I have four files, I need to compare these files together.
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I hope I have put this in the correct forum.
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Discussion started by: Rajkumar Gopal
2 Replies
LEARN ABOUT FREEBSD
comm
COMM(1) BSD General Commands Manual COMM(1)NAME
comm -- select or reject lines common to two files
SYNOPSIS
comm [-123i] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which should be sorted lexically, and produces three text columns as output: lines only in file1;
lines only in file2; and lines in both files.
The filename ``-'' means the standard input.
The following options are available:
-1 Suppress printing of column 1, lines only in file1.
-2 Suppress printing of column 2, lines only in file2.
-3 Suppress printing of column 3, lines common to both.
-i Case insensitive comparison of lines.
Each column will have a number of tab characters prepended to it equal to the number of lower numbered columns that are being printed. For
example, if column number two is being suppressed, lines printed in column number one will not have any tabs preceding them, and lines
printed in column number three will have one.
The comm utility assumes that the files are lexically sorted; all characters participate in line comparisons.
ENVIRONMENT
The LANG, LC_ALL, LC_COLLATE, and LC_CTYPE environment variables affect the execution of comm as described in environ(7).
EXIT STATUS
The comm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO cmp(1), diff(1), sort(1), uniq(1)STANDARDS
The comm utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
The -i option is an extension to the POSIX standard.
HISTORY
A comm command appeared in Version 4 AT&T UNIX.
BSD December 12, 2009 BSD