10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello all ,
I have two files a.txt and b.txt which have same content . They contain data that is fetched from database through a java program. When I delete a line in a.txt and run the below command
comm -13 a.txt b.txt
I am not getting the expected result i.e. the line i deleted from... (5 Replies)
Discussion started by: RaviTej
5 Replies
2. 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
3. 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
4. Shell Programming and Scripting
I need to compare 2 files. I need to see if 1 file has records that are not in a second file. I did some searching and found the 'comm' command. According to the man pages
comm -23 test1.txt test2.txt
Will tell me what is in file 1 and not in file 2. So I did a simple test
test1.txt has the... (3 Replies)
Discussion started by: guessingo
3 Replies
5. 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
6. Shell Programming and Scripting
I tried to compare two sorted files with comm command which contain floating values as:
RECT 0 9.8 8.70 7.8 in first file & RECT 0 9.80 8.7 7.80 in second file.
comm -3 first_file second_file should give a empty file but it does not.
Is there a way to compare these two files correctly... (4 Replies)
Discussion started by: nehashine
4 Replies
7. Shell Programming and Scripting
Hi,
Hope someone can shed some light on this...
I have two lists of numbers I am comparing using COMM. If the first list is empty, and I sort both lists like so:
DIFF=`comm -3 <(echo "$EMPTY" | sort -n) <(echo "$NUMBERS" | sort -n)`I get the error: comm: file 2 is not in sorted order
But... (2 Replies)
Discussion started by: LostInTheWoods
2 Replies
8. 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
9. 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
10. 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
COMM(1) User Commands COMM(1)
NAME
comm - compare two sorted files line by line
SYNOPSIS
comm [OPTION]... FILE1 FILE2
DESCRIPTION
Compare sorted files FILE1 and FILE2 line by line.
When FILE1 or FILE2 (not both) is -, read standard input.
With no options, produce three-column output. Column one contains lines unique to FILE1, column two contains lines unique to FILE2, and
column three contains lines common to both files.
-1 suppress column 1 (lines unique to FILE1)
-2 suppress column 2 (lines unique to FILE2)
-3 suppress column 3 (lines that appear in both files)
--check-order
check that the input is correctly sorted, even if all input lines are pairable
--nocheck-order
do not check that the input is correctly sorted
--output-delimiter=STR
separate columns with STR
--total
output a summary
-z, --zero-terminated
line delimiter is NUL, not newline
--help display this help and exit
--version
output version information and exit
Note, comparisons honor the rules specified by 'LC_COLLATE'.
EXAMPLES
comm -12 file1 file2
Print only lines present in both file1 and file2.
comm -3 file1 file2
Print lines in file1 not in file2, and vice versa.
AUTHOR
Written by Richard M. Stallman and David MacKenzie.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report comm translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
join(1), uniq(1)
Full documentation at: <http://www.gnu.org/software/coreutils/comm>
or available locally via: info '(coreutils) comm invocation'
GNU coreutils 8.28 January 2018 COMM(1)