03-19-2012
10 More Discussions You Might Find Interesting
1. 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
2. UNIX for Dummies Questions & Answers
I need to find deleted records from a file. I compare yesterdays file.old to todays file.new. I need to find the records that were in yesterdays file that are not in todays. My file is fixed field. If I run a "comm -23" obviously what i find is not necesarilly a delete, it could be a change.
... (0 Replies)
Discussion started by: eja
0 Replies
3. 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
4. UNIX for Dummies Questions & Answers
Hi,
I have around 14-15 files and i want to sort all the files and then compare. I dont want to sort them and store in a different file and then compare. I want to compare two files at a time. Is there a way we can do this using a single command? (5 Replies)
Discussion started by: dnat
5 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 have four files, I need to compare these files together.
As such i know "sdiff and comm" commands but these commands compare 2 files together. If I use sdiff command then i have to compare each file with other which will increase the codes.
Please suggest if you know some commands whcih can... (6 Replies)
Discussion started by: nehashine
6 Replies
7. Shell Programming and Scripting
I'm looking to compare two delimited files:
file1
one|xxx
two|xxx
three|xxx
file2
four|xxx
five|xxx
six|xxx
one|yyy
Where the result is the the file2 row whose first field does NOT appear in file1. I.e., the correct result would be:
result
four|xxx (3 Replies)
Discussion started by: tiggyboo
3 Replies
8. 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
9. Shell Programming and Scripting
Hello All,
Iam using below method to sort and compare files. First iam doing sorting and changing the same file and then doing comparing and taking the final result to another file.
sort -o temp.txt file1
mv temp.txt file1
sort -o temp.txt file2
mv temp.txt file2
sort -o temp.txt... (6 Replies)
Discussion started by: Vikram_Tanwar12
6 Replies
10. Shell Programming and Scripting
i have file1 and file2
file1
ABC
XYZ
file2
ABC
so i used the below command
comm -12 file1 file2 > matched
comm -23 file1 file2 > unmatched
I need some other command because this is not working in the current unix version (1 Reply)
Discussion started by: ATWC
1 Replies
DIFF(1) General Commands Manual DIFF(1)
NAME
diff - differential file comparator
SYNOPSIS
diff [ -efbh ] file1 file2
DESCRIPTION
Diff tells what lines must be changed in two files to bring them into agreement. If file1 (file2) is `-', the standard input is used. If
file1 (file2) is a directory, then a file in that directory whose file-name is the same as the file-name of file2 (file1) is used. The
normal output contains lines of these forms:
n1 a n3,n4
n1,n2 d n3
n1,n2 c n3,n4
These lines resemble ed commands to convert file1 into file2. The numbers after the letters pertain to file2. In fact, by exchanging `a'
for `d' and reading backward one may ascertain equally how to convert file2 into file1. As in ed, identical pairs where n1 = n2 or n3 = n4
are abbreviated as a single number.
Following each of these lines come all the lines that are affected in the first file flagged by `<', then all the lines that are affected
in the second file flagged by `>'.
The -b option causes trailing blanks (spaces and tabs) to be ignored and other strings of blanks to compare equal.
The -e option produces a script of a, c and d commands for the editor ed, which will recreate file2 from file1. The -f option produces a
similar script, not useful with ed, in the opposite order. In connection with -e, the following shell program may help maintain multiple
versions of a file. Only an ancestral file ($1) and a chain of version-to-version ed scripts ($2,$3,...) made by diff need be on hand. A
`latest version' appears on the standard output.
(shift; cat $*; echo '1,$p') | ed - $1
Except in rare circumstances, diff finds a smallest sufficient set of file differences.
Option -h does a fast, half-hearted job. It works only when changed stretches are short and well separated, but does work on files of
unlimited length. Options -e and -f are unavailable with -h.
FILES
/tmp/d?????
/usr/lib/diffh for -h
SEE ALSO
cmp(1), comm(1), ed(1)
DIAGNOSTICS
Exit status is 0 for no differences, 1 for some, 2 for trouble.
BUGS
Editing scripts produced under the -e or -f option are naive about creating lines consisting of a single `.'.
DIFF(1)