Assuming the files are sorted, comm will find the three sets: in a, in b, and in both, and -3 says disard both. Sed finds lines with no leading tab (\t should be a real tab, which I cannot type here), the a lines, and sees if there is a following b line it can glue to it, else spit out the first line and try again.
Hello,
I want to compare two files. All records in file 2 that are not in file 1 should be output to file 3.
For example:
file 1
123
1234
123456
file 2
123
2345
23456
file 3 should have
2345
23456
I have looked at diff, bdiff, cmp, comm, diff3 without any luck! (2 Replies)
I have two CSV files and I would like to create a third CSV file containing the differences between the two.
I understand the diff command can be used to list differences between two files. My problem is that when I pipe the output into a third CSV file, the line numbers and other formatting... (3 Replies)
Hello is there a way to limit the number of lines output by the DIFF command?
I tried -C 200 ect and -c but it continues to print out the whole huge file.
Reason needed is i'm trying to do alot of DIFFs on a long list of files and would like to only get back an indicator which files are... (2 Replies)
Hi,
i need to display the mismatches from two files.The output what is get is the entire rows which mismatch from file 1 are displayed first and the corresponding rows from file 2 are displayed below it.
Sample output:
From Test Run 1 - The row count of file2.txt is 23
From Test Run 1 -... (9 Replies)
I need to compare two directories with tab separated files. I'm using diff to do this. diff output doesn't identify which column values are different, it just tells which lines are different. Is there any way to format diff output. Thanks
f1.txt
210 998877 phone 9981128209 add 111 nw st.... (2 Replies)
hello everyone,
I am trying to compare two files and have the result in a new files. When I used diff I am getting the header, '<' and '>' in my result which I don't want to have it in my output file. :wall:
opt/sam/input: diff file1.txt file2.txt
1,20d0
< 16,ZA,
< ZJ,08,
< Z7,03,
Any... (1 Reply)
How to get diff to not print the chevrons and the dashes? In this case the differences are all single line differences.
Also the first few lines don't matter. How to get the output to always exclude the first few lines? Thanks! (1 Reply)
Hi,
I wasn't sure whether to post this in the dummies or expert section, here's what I'm trying to do, but I suspect I'm missing the boat and should perhaps be using some of diff's builtin output functionality.
diff -yb --suppress-common-lines file1.js file2.js >> ~/results.txt
When I... (5 Replies)
I am running diff between two directories dir1 and dir2.
diff --exclude --recursive --brief -b dir1 dir2
The output of the above command is
Files dir1/java/abc/bcd/abc9991.java and dir2/java/abc/bcd/abc9991.java differ
Files dir1/java/abc/bcd/abc9933.java and... (11 Replies)
Discussion started by: gaurav99
11 Replies
LEARN ABOUT OPENDARWIN
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.
-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.
DIAGNOSTICS
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'').
HISTORY
A comm command appeared in Version 4 AT&T UNIX.
BSD June 6, 1993 BSD