Questions tagged [diff]
diff - Command-line tool to display the differences between two files, or each corresponding file in two directories.
1
vote
1answer
58 views
Linux diff command, is it discarding newlines?
Does the Linux implementation if diff -w discard \n?
I don't have access to a Linux machine to check that out.
1
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2answers
55 views
Diff between two csv files based on the column
I have two files file1.csv and file2.csv.
Below are the contents of file1.csv
AL.jar;d8c06ebedd7954681f34ab5c94fdc4fb
AR.jar;9a553dd203d0979aa60004e19cc98c12
BI.jar;8022f6c5f83ba040394ff0b0a0323e8e
...
-1
votes
1answer
35 views
Linux Compare two files on different field and print field 1 of first file
I have two files like this.
file 1
1:apple
2:banana
3:pineapple
4:guava
5:orange
and file 2 like this
apple
guava
orange
i just want to compare file 2 with file 1 and print the 1st field for the ...
0
votes
2answers
34 views
How do I diff the output of these two commands? [duplicate]
I have an alias which I use to strip out comments that are piped to it:
alias decomment='egrep -v "(^#.*|^$)"'
I'm currently having some difficulty with a squid proxy setup, so I want to compare ...
1
vote
1answer
51 views
Multi-threading diff
I'm comparing the content of two directories using the diff command in bash.
It uses only one thread on a multi-thread system.
Does somebody knows a way to have diff to use more than one cpu/thread? ...
-1
votes
1answer
53 views
Find unique lines, ignoring certain columns
I want to be able to go through a file and find lines that are different in the fields I expect to be stable, ignoring differences in the fields I know will be different.
I want to ignore columns 2,5,...
1
vote
1answer
39 views
How to see which files are identical given a list of files in two projects
I have two projects named project1 and project2 with identical file trees as follows.
project1/, project2/
.
├── src
│ ├── index.html
│ ├── main.js
│ ├── normalize.js
│ ├── routes
│ │ ├──...
1
vote
0answers
28 views
How shall I understand the different outputs by `-A` and by `-e` of diff3?
diffutils' manual says, in diff3 -A mine older yours
The ‘--show-all’ (‘-A’) option acts like the ‘-e’ option, except that it brackets conflicts, and it outputs all changes from older to yours, not ...
-2
votes
1answer
69 views
How does `diff` decide whether a difference is change (i.e. replacement) or combination of addition and deletion?
I was wondering how diff decides whether a difference is change (i.e. replacement) or combination of addition and deletion?
The best I can find from diffutils' manual is
‘fct’
Replace the ...
0
votes
2answers
34 views
How shall I understand the conditions for merging by diff3 to be well-defined?
In diffutils' manual
diff3 mine older yours
You can remember the order of the arguments by noting that they are in
alphabetical order.
You can think of this as subtracting older from ...
-3
votes
2answers
81 views
What do comm and diff try to accomplish at input/output level?
Given two files, for each line in each file, how do comm and diff determine
whether the line also occur in the other file?
if it does, whether its occurrences in the two files are the same or ...
0
votes
1answer
89 views
How shall I understand the unified format of diff output?
From diffutils' manual
Next come one or more hunks of diff erences; each hunk shows one area
where the files differ. Unified format hunks look like this:
@@ from-file-line-numbers to-file-line-...
0
votes
2answers
364 views
Is there some tool for finding files in one directory but not in the other? [duplicate]
I would like to write a bash script to find those files in a directory but not in another directory.
Does the following script work? When does it not?
for i in "$1"/*; do
f=$(basename $i);
...
0
votes
1answer
38 views
Can someone explain to me what this **diff** means..? [duplicate]
I'm having an extremely hard time to read this can someone explain what it means, and what the difference between the two is ?
$> diff -U 3 user_output_test1 test1.output | cat -e
--- ...
1
vote
3answers
76 views
How to ignore differences between negative signs of numbers in the diff command?
I have two large files consisting mainly of numbers in matrix form, and I'd like to use diff (or similar command) to compare these files and determine which numbers are different.
Unfortunately, ...
22
votes
1answer
915 views
What effect does the “-d” option have with diff?
The diff implementation on OpenBSD has a non-standard -d option with the following documentation:
-d
Try very hard to produce a diff as small as possible. This may
consume a ...
3
votes
2answers
176 views
How to produce a diff without lone identical lines
Let's say I have rewritten a C function from scratch. It often happens that some lines happen to be identical before and after, in particular blank lines and closing braces. When I create a unified ...
0
votes
1answer
27 views
Comparing IP info between two files based on criteria and outputting the results to two different files [duplicate]
I have a file called "knownIP". This file contain known IP addresses for a group of windows servers. These IP addresses are unique to this group of windows servers.
I have another file called "...
0
votes
1answer
108 views
Diff outputs “binary files <file1> <file2> differ” but not the usual detail output
I would like to compare two files - "orienv" and "currenv", using the command diff.
The way I had created the two files was as follow:
Createing the "currenv" file
$cat /proc/1/environ >> ...
4
votes
7answers
188 views
How to compare the same word between multiple files?
I would like to count the same words across multiple files then show in which file they are.
File1:
This is so beautiful
File2:
There are so beautiful
File3:
so beautiful
The desired output 1:
...
0
votes
1answer
57 views
Comparing two files with an easy readable GUI program?
I would like to compare two large files that are not close to 1Gb in size.
Kompare crashes when the files load is large. I configured Kompare as in the photo below:
I would like to present the ...
1
vote
1answer
41 views
How alike/different are two binary files
I have some media files (right now it's video files, but I suspect I would also be able to use a good solution on picture files), that are very similar, but according to diff/cmp not identical. But if ...
1
vote
2answers
37 views
Comparing two separate directories for directories and files within
To compare the structure by iterating through each and every folder, I have tried to list the output(to a text file) of every directory and file present :
diff --brief -Nr dir1/ dir2/ > out.txt
...
-2
votes
2answers
32 views
Filter the below text using shell commands
I am able to get the file difference using git diff command and I got it filtered like below:
-This folder contains common database scripts.
+This folder contains common database scripts.
...
2
votes
2answers
439 views
Side by side diff of large files
I have two ~1 GB files that I want to do a side by side diff of. Solutions I have tried:
diff - Works quickly but doesn't output side-by-side.
diff -y or sdiff - This outputs side-by-side but it ...
1
vote
1answer
26 views
Diff acting very strangely, reports long blocks as deleted when short bits throughout the block have been changed, deleted or added
I have two files, both are outputs from a code that I have put through cut to only look at the first 26 characters of each line. Both files are lists of parameters that the code measured, such as "...
1
vote
1answer
116 views
How to find which lines are different in a CSV file in the Linux command line?
Im trying to find which lines differ in between file1.csv and file2.csv. if file1.csv looks like this:
1,2,3,4
5,6,7,8
9,10,11,12
and file2.csv looks like this:
1,2,3,4
9,9,9,9
5,6,7,8
9,9,11,12
...
0
votes
1answer
32 views
Print only what is exclusive to a file compared to another in Bash
Good day everyone,
I know there are a lot of similar questions already answered, but I can't find a satisfying answer and it drives me nuts.
I have two files which both contain hostnames : one that ...
0
votes
1answer
175 views
Use diff and ls to detect files that changed in remote folder
I have a remote directory with read access.
I want to generate a list of files that changed since last iteration.
My idea is something like:
$ cp output.new output.old
$ ll > output.new
$ diff ...
0
votes
4answers
32 views
Getting Mismatched Entries In 2 Files [closed]
Problem..{ I've users with home dirs in /home, so I can get a list of users matching my criteria with following command.
STEP 1: Fetching A List Of Users
du -h --max-depth=1 /home 2>/dev/null | ...
1
vote
1answer
1k views
Compare two zip files for differences
diff command compares to see any difference betwenn two files. Can the same be used to compare two zip files, i.e if there is any difference in data ,like counts etc in individual files in the zipped ...
1
vote
3answers
871 views
Linux equivalent of windows cmd command
I'm migrating to Linux, and I need to convert the following Windows cmd command:
fc file1.txt file2.txt | find /i "no se han encontrado diferencias" > nul && set equal=yes
I think fc can ...
0
votes
0answers
18 views
Software for directory integrity
I keep a directory on my home server with all of my important files on it. I want to make offline backups of this directory. But as I add and modify file, I also want to be able to make comparisons ...
0
votes
0answers
21 views
Simple multithreaded diffing on macOS
I run diff -rq on terabyte-size directories in macOS. Is there a simple way to parallelize this process?
0
votes
2answers
558 views
Show only changed lines without syntax with git diff
I have a list of usernames that are in a text file. I update this file and commit it. I am looking for a way to get a list of the changes since the last commit.
I do not want any diff formatting at ...
1
vote
1answer
183 views
Allow patch of symlinks
When I try to run a patch command with a patchfile against a link, patch gives me the error:
File path/to/file is not a regular file -- refusing to patch
The following command produces this error ...
1
vote
1answer
62 views
Diffing for metadata differences
Is there are way to use utility like diff to find the difference in metadata of two identical file hierarchies? If I have two identical file structures like
root_folder/
file1
file2
...
1
vote
1answer
37 views
Getting differences of file between specific revisions/branches
I have 2 different branches A,B that have a (slightly different) version of a file X.
I am interested in getting the commits that added some specific patterns in branch B.
What I do roughly: diff ...
1
vote
1answer
173 views
How to undo after patch is applied? .rej/.orig files
The case is following. I have two files: file1.c, file2.c
ls
file1.c file2.c patch.diff
patch < patch.diff
...
x out of x hunk FAILED -- saving rejects to file file1.c.rej
(the same with file2.c)...
2
votes
0answers
81 views
How to highlight output from diff command and make them side by side?
I have two files
$ cat file1.txt
UUXX:1
UUXX:2
$ cat file2.txt
UUXX:3
UUXX:1
I want to use this command
$ diff --old-group-format=$'\e[0;31m%<\e[0m' --new-group-format=$'\e[0;31m%>\e[0m' --...
1
vote
2answers
69 views
Find the difference between two list
I desire to compute the difference of two lists:
$ pip list > package1.md
Package Version
---------------------------------- ---------
alabaster ...
0
votes
1answer
334 views
Apply patch to multiple different name
Is it possible to apply patch to different file name but with the same structure. The case was, I have a patch of a file with specific name and then for some inevitable reason that file got changed ...
0
votes
1answer
48 views
Change in shell script
I was using a bash script to do some automated testing on a CLI. All of a sudden it does not seem to work. Seems like our devops have done some changes to the OS.
The error i see is
bash-3.2$ sh ...
1
vote
0answers
60 views
Diff of PDF files leaves garbage on next command line [duplicate]
I would call this a curiosity more than a problem or anything else:
When using diff on two specific PDF files that are similar but not the same, I get some garbage dumped on the next command line.
...
0
votes
2answers
520 views
How to write the difference between two files into a file
Saying that I have two files: a.txt and b.txt.
The content of a.txt:
hello world
The content of b.txt:
hello world
something else
Of course I can use vimdiff to check their difference, I can make ...
0
votes
2answers
45 views
Diff filenames of two directories?
So, I've run the ls -C1 on two directories:
mod@ux:~$ ls -C1 /bin | wc -l
165
mod@ux:~$ ls -C1 /sbin | wc -l
167
How to list only different filenames/commands and which directory contains them?
2
votes
2answers
932 views
Diff between local and remote directory
I want to compare my local directory and remote directory.
Example: Consider 2 directories as local and remote directory
|-local
| |--aaa
| | |--file1
| | |--file2
| |
| |--bbb
| | |--...
2
votes
1answer
287 views
Using output of diff -e with sed
I'm currently attempting to change the contents of one file
orig.sas
to match the contents of an updated file
new.sas
Replacing orig.sas with new.sas makes some of the changes, but there are ...
0
votes
1answer
60 views
diff of config files showing only uncommented lines
Consider the need to use 'diff' to compare two files with many commented lines, such as system configuration files. (For example, the files could be /etc/cups/cups-files.conf.pacnew and /etc/cups/cups-...
0
votes
3answers
50 views
Trouble with piping
Why I can't do something like:
tail -n 5 small.txt | diff small.txt
I want to pass the execution result of the first command like second argument of the second, not stand alone input. How can I do ...
