10 More Discussions You Might Find Interesting
1. Linux
The manual does not cover this very well. What do the following compares will do ?
1) comm -13 file1 file2: will it display what is in file2 not in file1?
2) comm -23 file1 file2: will it display what in 1 but not in 2 ?
Thanks (5 Replies)
Discussion started by: mrn6430
5 Replies
2. UNIX for Dummies Questions & Answers
Hello , I am trying to get contents which are only present in a.csv ,so using comm -23
cat a.csv | sort > a.csv
cat b.csv | sort > b.csv
comm -23 a.csv b.csv > c.csv.
a.csv
SKU COUNTRY CURRENCY PRICE_LIST_TYPE LIST_PRICE_EFFECTIVE_DATE
TG430ZA ZA USD DF ... (4 Replies)
Discussion started by: RaviTej
4 Replies
3. UNIX for Dummies Questions & Answers
could some one please explain with examples how comm -12 & comm -3 works. I am confused with manual page, Thankyou. (2 Replies)
Discussion started by: Ariean
2 Replies
4. UNIX for Dummies Questions & Answers
Hi all,
I need help in comm command , I am having 2 files . I have to display the common line in the two file only onnce and i have to also display the non common line as well.
tmpcut1 -- First file
cat tmpcut1
smstr_303000_O_432830_... f_c2_queue_sys30.sys30 RUNNING 10 1000... (1 Reply)
Discussion started by: arunkumar_mca
1 Replies
5. Shell Programming and Scripting
hi,
I have two unsorted files and want to delete the lines which are common to both.
file 1:
S1069656304010437
S1069656304010449
S1470204501005393
S1069656304010474
S0001209208001294
S0000000012345678
S0001457507000590
S0002641707000784
S1470204501005381
S0001457507000280... (4 Replies)
Discussion started by: jathin12
4 Replies
6. Shell Programming and Scripting
Hi
I have issue with "comm " command
file-1
----
l65059
l65407
l68607
l68810
l69143
l71310
l72918
l73146
l73273
l76411
file-2
----- (8 Replies)
Discussion started by: amitrajvarma
8 Replies
7. Shell Programming and Scripting
I have two sorted files.
newfile has records like:
aaa|bbb|ccc|||
ddd||eee|fff||
oldfile has records like:
aaa|bbb|ccc|
ggg||hhh|fff
The output should like:
ddd||eee|fff||
I use comm but it's not working for this case.
comm -2 -3 newfile oldfile > difffile
The difffile is the... (6 Replies)
Discussion started by: sslr
6 Replies
8. UNIX for Dummies Questions & Answers
See my other post on sdiff ....
I don't think sdiff is able to do what I want.
The 'comm' command does what I need and works fine as
far as the logic and results.
The problem I'm having is with the output format, it outputs 3 columns of data,
but because of the way it starts each line... (2 Replies)
Discussion started by: cowpoke
2 Replies
9. Shell Programming and Scripting
Hello all, I have two flat files that are colon delineated and I am trying to run a compare (Solaris v8 ksh) of $1 within a script to access a mysql database based on the results. Unix is telling me that it has to have physical file names. Is there a way to run a compare using variables? This is... (3 Replies)
Discussion started by: gozer13
3 Replies
10. Shell Programming and Scripting
Hi,
I have two large files with uid's:
- 581004 File1.txt
- 292675 File2.txt
I want to know which uid's are in File1.txt and not in File2.txt.
I have used comm -23 File1.txt File2.txt. This should do the trick i thought. But in the output i keep having uid's in File1.txt that are also in... (8 Replies)
Discussion started by: tine
8 Replies
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.
-2 Suppress printing of column 2.
-3 Suppress printing of column 3.
-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.
BUGS
Input lines are limited to LINE_MAX (2048) characters in length.
BSD
January 26, 2005 BSD