diff - Command-line tool to display the differences between two files, or each corresponding file in two directories.

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Comparing text files using Bash and AWK

I have two text files, and I want to compare their corresponding values according to their rows and columns. By comparing, I mean to check if the values are equal and echo if the values are the same ...
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329 views

diff --git unknown option

when I try to run diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c I get unknown option (I have installed git via apt-get install git)
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How to make diff print a full file diff when a file does not exist?

I'm trying to compare files on the root file system with a backup, and I'd like the comparison to work a bit like git or svn diff when a file has been added or removed - That is, display the full file ...
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170 views

Applying a diff patch

I've never patched anything in Linux, and I can't exactly figure out what the guy who wrote this post (second paragraph) means. That target source is qemu from github and the changes to apply are: ...
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156 views

Find differences in file and sorting file by key

So I have two language files, english and french. They are in this format: key=translation An example in English would be: ui.title=My Title And in French: ui.title=Mon Titre So I need a ...
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892 views

Is cmp faster than diff -q?

In a recent AU question on checking whether some files have differing content, I saw a comment stating that if the differing sections didn't matter, cmp would be faster than diff. This SO answer ...
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3answers
2k views

compare files line by line and create new one bash programming

I have two text files. File 2 has logs over 1,000,000. File 1 has IP addresses line by line. I want to read file 2 lines and search these lines in file 1, I mean: file 1: 34.123.21.32 45.231.43.21 ...
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101 views

How can I show the number of positions lines have moved in diff output?

top1 1,facebook.com 2,google.com 3,youtube.com 4,yahoo.com 5,wikipedia.org 6,baidu.com 7,live.com 8,amazon.com 9,qq.com 10,twitter.com top2 1,facebook.com 2,google.com 3,youtube.com 4,yahoo.com ...
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226 views

How to compare two directories thoroughly without git?

Here thoroughly means “list all differ files, find those files with same name and different content, list the difference of content”. Before I got a lazy solution, git init one directory and copy ...
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678 views

How to make diff command ignore certain lines of second file(bash)?

For example: file1.txt: I need to buy apples. I need to run the laundry. I need to wash the dog. I need to get the car detailed. file2.txt I need to buy apples. I need to run the laundry. I need ...
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794 views

Diff 2 files ignoring strings between @ and [

I am comparing two files. I am trying to ignore the alphanumeric characters after @ and before [ . A line looks like model.Field@d6b0d6b[fieldName
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99 views

Was 'diff' included in the first version of Linux

What is the list of programs that were available in the first public version of Linux distribution (not just kernel)? I am specially concerned when this distribution was released and if diff utility ...
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1answer
187 views

How can we compare two same directories in linux and list different files

Suppose I have same version of linux kernel but I changed some driver lines. Is there any way to compare these kernels and list the results. The result would be helpful to go back if I changed a lot ...
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2answers
121 views

how to count number of differences in large streams quickly?

I want to count the number of differences (different bytes) in two large streams (devices/files). E.g. two hard disks, or one hard disk and /dev/zero. The program(s) involved must be fast, as fast ...
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2answers
273 views

Live diff-mode editing in vim

I want a live view of diffs while I am editing a file. vimdiff is able to do something I want, like highlighting the differences between two files. However there are two drawbacks of vimdiff that ...
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2answers
89 views

Keep patch in sync with changing source

Is there any standard option to create 'patch' P that works on file F in such way that it will keep working correctly when file F changes into F'. So I will either have some mechanism that will ...
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32 views

git --diff like command for Linux local dirs

dir1 has 1 file and dir2 has 2 files as below: /tmp$ ls dir1 file1 /tmp$ cat dir1/file1 line1 line2 line3 /tmp$ ls dir2 file1 file2 /tmp$ cat dir2/file1 line1 /tmp$ cat dir2/file2 line1 /tmp$ diff ...
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3answers
189 views

Difference between files in directory

I have two directories with same files but with some difference in their contents. I want to list down those files which are differing. For example There are two folders Folder1 and Folder2 with ...
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2answers
52 views

What optimized tools are available for comparing directory contents?

I am mirroring a Subversion repository tag with svn2git and I want to be sure that when I checkout particular revisions, those I obtain from the git mirror match those from Subversion. My main problem ...
2
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1answer
125 views

Diff of directory statistics sumarry (git diff --stat like for non-git repo)

Is there a tool (or diff option combination) which would produce output similar to git diff --stat? I have two kernel sources and I would like to get general idea of what was changed in them. ...
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2answers
995 views

Compare directory trees regarding file name (and size and date)

I want to check the results of a restore from backup. This is, because TimeMachine on MacOS gives me some weird errors and warnings and I want to make sure, everything is in its place again after ...
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136 views

Using Diff with -y to get side-by-side output

I am trying to use diff with -y to get side-by-side output, but my output gets messed up after about 18 lines. Here is an example, any clue why? (Check from *.java_pool_size=134217728) : ...
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diff binary files of different sizes?

Is there a neat way to see the difference between two binary files? They are mostly the same, but some bytes are changed, and one of the files has sequences inserted in some places. Diffing the ...
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1answer
220 views

Is there a way to define the preferred merge or diff tool under Unix?

I know that you can define the preferred editor by setting the EDITOR environment variable. My question is if there is a similar solution for setting the preferred merge or diff tool.
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1answer
637 views

Reading two files into an IFS while loop — Is there a way to get a zero diff result in this case?

I have a text file full of several hundred lines of sequences like this: b 29. b 52. c 84. c 83. c 94. c 93. c 61. b 38. c 81. c 92. c 28. c 37. ...
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1answer
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Patching a file (in this case dwm) and failed hunks

I'm trying to add the transparency patch to dwm. I downloaded the .diff file and in my dwm directory ran this: max@linux-vwzy:~/misc/dwm/dwm-5.9> patch < dwm-transparency.diff patching file ...
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2answers
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Comparing files and their properties

I get information of a certain set of files in my mail every day, which looks like this: 58623208 Sep 14 20:08 blbn_blfbe_drv 57904920 Sep 14 19:54 blbn_cycmn 55814208 Sep 14 06:02 clsa_Upd 38912000 ...
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3answers
2k views

Total Commander “compare content” like alternative?

I'm searching a GUI [or CLI] tool that can produce output like the Total Commander compare content function does! For example: Are there any that do that? It's a very handy tool and I miss it
2
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1answer
25 views

Compare two files, while overriding second file's size

I am trying to verify a backup that I made using the following command: dd if=/dev/sda of=/dev/sdc2 I backed up the contents of /dev/sda (internal hard drive) to /dev/sdc2 (external backup drive, ...
2
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1answer
101 views

How to apply simple patch (reverse detected)

I'm trying to create and apply a simple patch to fix a bug with gradle. I copy the file (/usr/bin/gradle) to my working directory, then make the change. I then create the patch: diff -u ...
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1answer
253 views

Diff tool with nice output like kdiff3

I like kdiff3 very much due to the way it displays the result. It can compare more than two versions of a file or directory and displays the differences in columns: For directories, it displays ...
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437 views

check if all files from a folder are also in another folder

I basically have a directory a with lots of images. Now I want to check if all of these images are in directory b. The point is, that lots of images in b ain't directly in b but in subdirectories. ...
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203 views

Diff dpkg files with local copies

Is there a way of diffing the dpkg files with the one that are actually installed? Or barring that a way to find ones that have been modified?
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2answers
81 views

How to show names of files being compared?

I used diff --from-file to compare my Riak dev1 config to the three others. diff --from-file ~/riak/dev/dev1/etc/app.config \ ~/riak/dev/dev2/etc/app.config \ ~/riak/dev/dev3/etc/app.config \ ...
2
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1answer
509 views

RANCID like configuration differ for linux applications

I'm looking for a RANCID-like (http://www.shrubbery.net/rancid/) config management tool - the catch is that I want to manage config files for Linux applications like mysql, apache, memcache, varnish, ...
2
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1answer
384 views

password problem when feeding a remote file into diff

When I want to compare a local file with a remote file, any of these usually works: $ ssh remote cat file | diff file - $ diff file <(ssh remote cat file) However, sometimes (especially when the ...
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2answers
66 views

How can I check if a directory contains the same files of a TAR archive?

Let's say I have a folder Documents and a TAR file Documents.tar, how to check if the tar file contains the same files that are present in the directory? The more obvious solution to me would be to ...
2
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1answer
56 views

Vim and unified diffs

In my daily work, I only deal with unified diffs, so I would like to define the alias alias diff='diff -puN' in my .zshrc. This alias is not respected when I use the shell from the vim command ...
2
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1answer
25 views

How to determine the only additional file in otherwise two identical listings?

I have done a listing of the device folder two times, one time without the sd-card in the slot and one time inserted, the system automatically adds one file in the device folder. $ ls /dev | wc -l ...
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1answer
2k views

How to compare two tar archives (including file content, new/removed files, symlinks)?

I have two tar archives (compressed or not compressed), and I want to find all differences in the two archives. Both archives contain a complete file system (i.e. when unpacked, would generate ...
2
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1answer
438 views

Compare all text files in a directory, and sort by similarity

In Unix, is there any way to compare every text file in a directory to every other text file in the directory, and then sort each pair of files by similarity (using the diff utility)? There are ...
2
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1answer
42 views

Using diff to show both contents of new files and that new empty files are created [duplicate]

After executing these 4 commands, directory "a" has file "1" with contents "test" and file "2" which is empty, and directory "b" is empty. $ mkdir a $ mkdir b $ echo test > a/1 $ touch a/2 We ...
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0answers
313 views

Highlight differences between two files, similar to what watch -d produces

The command watch -d produces a very interesting diff: it shows the most recent iteration of the command, and highlights (with inverse video) the differences to the previous iteration. This works ...
2
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1answer
39 views

`diff -y file-{a,b} | less` and DOS line endings display issues

In my current job I often have to work with files from Windows machines which most of the time isn't a big deal, but when piping a side-by-side diff to less, not only are the ^M being displayed, but ...
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114 views

One way diff between 2 directories

I am looking to perform a diff between 2 directories, both of which contain may files and subdirectories. I am hoping to perform a one-way diff between a source and target directory that will return ...
2
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1answer
498 views

How can I see moved lines in a file comparison with vimdiff / diff?

Moved lines are frequently annotated as deletes and adds but they can be shown as moved-from and moved-to instead. Like in this screenshot of Notepad++.
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288 views

Using Unison with colordiff

I want Unison to show the diffs with colordiff. I’ve got diff = colordiff -u CURRENT2 CURRENT1 | less -R in my config file but it seems like Unison pipes the output to plain less nonetheless, so I ...
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38 views

Packaging a directory and its contents as a diff patch?

I have a small project folder with text files, which I'd like to post somewhere in order to ask a question on a forum. Let's take, in the simplest case, that I have something like this: mkdir aaa cd ...
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3answers
240 views

How to pipe output of find as input for diff?

This is a basic question regarding bash but I could not find a solution. I have many subdirectories with identically named files and I want to compare all of them for identity. I can return list of ...
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2answers
386 views

Possible to view two text files side by side (read only)?

In emacs, we can view two text files side by side. Is it also possible to do so in some simpler/lighter applications such as less? Only viewing, no editing.