diff - Command-line tool to display the differences between two files, or each corresponding file in two directories.
3
votes
1answer
62 views
How do I diff the outputs of two commands?
How can I use the diff command to compare 2 commands' outputs?
Does something like this exist?
diff ($cat /etc/passwd) ($cut -f2/etc/passwd)
0
votes
0answers
16 views
what does 1d0 mean in diff output? [duplicate]
Say you have two files
file1
a
b
c
d
file 2
b
c
d
e
The first line of
diff file1 file2
would be
1d0
I've read up on this and found that it means delete the lines in the first file at ...
0
votes
1answer
19 views
diff files within dirs listing by date modified
I was using MELD but it can't seem to sort by modification time, so I've been looking for a way to achieve something similar in terminal. I found a line of code
find /path/to/dir1 /path/to/dir2 ...
6
votes
3answers
533 views
Git pager is less, but what is causing the output coloring?
less itself isn't capable of doing syntax highlighting, according to this thread.
However, git diff nicely shows colored output in less, its default pager. When I redirect the output of git diff ...
3
votes
1answer
35 views
git diff of copies that only added lines
Say I have two processes that append lines to copies of the same original (parent) file (copy_A and copy_B). If I diff these copies, can diff ever conclude that we have a conflict? (i.e. can it ever ...
2
votes
3answers
48 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 ...
25
votes
4answers
2k views
Result of diff two files with switched lines says missing the same line twice
I am trying to understand the linux diff command on two files whose lines are just permutation of each other but not able to grok the output that it generates. Consider the three commands below:
...
7
votes
3answers
530 views
Run a diff between local and remote file
I'm connected on a host via ssh and I'd like to compare (let's say with diff) a certain config file against its counterpart on another host, also accessible via ssh, without having to manually ...
1
vote
2answers
79 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.
2
votes
2answers
63 views
How can I compare two files based on the value of the first column?
I want to compare two files based on the value of their first column:
file1
aaa 23 3
bbb 56 6
ccc 45 2
file2
bbb m a
aaa a m
ccc m m
The output file should be:
aaa a m
bbb m a
ccc m m
...
2
votes
1answer
78 views
diff two directories for changes and format output to use for script
I currently try to monitor two directories and subdirectories for changes in files. The directories contain the same set of files, some of them are changed. So I thought I might use the diff command ...
3
votes
2answers
91 views
Comparing files in unix columnwise
I want to compare two files with same number of rows and columns with records in same order.
Just want to highlight the differences in the column values if any.
file A:
1,kolkata,19,ab
...
2
votes
1answer
36 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 ...
1
vote
1answer
32 views
Assign diff -y column names
I have two files and a shell script.
File 1:
Batman
Superman
John Snow
Jack Sparrow
Rob Stark
File 2:
Batman
Ironman
Superman
Spiderman
John Snow
Arya Stark
Jack Sparrow
Rob Stark
The hound
...
2
votes
3answers
1k views
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 ...
3
votes
1answer
74 views
Compare two files strictly line-by-line, without insertions or deletions
I have two files that essentially contain a memory dumps in a hex format. At the moment I use diff to see if the files are different and where the differences are. However, this can be misleading when ...
0
votes
2answers
51 views
SSH using diff and still not working
I have 2 file, a.txt and b.txt and I want to compare them.
a.txt contains:
abc
jkl < jkl
mno > mno
pqr <> pqr
b.txt contains:
abc
jkl < jkl
mno > mno
pqr <> pqrs
stu
I'm ...
2
votes
0answers
47 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
votes
0answers
192 views
diff -r only for certain file types
Is there a way I can perform a recursive diff of two directories but only compare (in their respective places) files that match a specific filename or filetype predicate?
E.g. I would like to do ...
1
vote
0answers
57 views
How do I fix a patch [closed]
I am trying to fix a patch, and reviewed a couple of very interesting urls. One of which is this one: Handling Patch Rejects I like to make sure I am understanding the patch and the problem correctly. ...
4
votes
1answer
62 views
heuristically find how different a set of files are
I am having a large number of output files produced by repeated runs of a test suite and would like to see, approximately, how different they are. Ideally they should all be identical (indicating a ...
4
votes
1answer
62 views
Compare files and tell how similar they are
Is there a way to compare two file and give some kind of numeric indication of their similarity?
For example, if I have two files that differ by just one character (say, a character was deleted or ...
1
vote
0answers
50 views
Merge several files with maximum 1 line difference
Suppose I have the following files:
file0.c:
int b=NULL;
int a=NULL;
file1.c:
int b;
int a=NULL;
file2.c:
int b;
int a=NULL;
I am looking to merge the files file1 and file2 to generate the ...
4
votes
2answers
381 views
How to know if a text file is a subset of another
I am trying to find a way to predict if a text file is a subset of another..
For example:
foo
bar
is a subset of
foo
bar
pluto
While:
foo
pluto
and
foo
bar
are not one a subset of each ...
3
votes
3answers
1k views
Alternative to diff with progress for massive directory compare?
I just rsync-ed 2,000,000 files (3TB) from one RAID to another.
I want to make sure my data is intact.
rsync -c takes a really long time.
diff doesn't show me what it's doing.
Is there an ...
10
votes
2answers
353 views
Is there a Linux deep diff tool that also compares file attributes?
Is there a Linux tool like diff that will recursively compare files and directories, but with the addition of also comparing: extended attributes, acl's, se contexts?
2
votes
2answers
43 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?
1
vote
1answer
69 views
Running 'diff 'command after the 'find' command
I'm running this code on shell
mv -f ~/sites/text1.txt ~/sites/text2.txt;find ~/sites/ -type f -exec sha1sum {} >> ~/sites/text.txt \;diff ~/sites/text1.txt ~/sites/text2.txt;
However every ...
2
votes
2answers
53 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 \
...
7
votes
3answers
2k views
How do you compare two folders and copy the difference to a third folder?
You've got three folders:
folder current, which contains your current files
folder old, which contains an older version of the same files
folder difference, which is just an empty folder
How do ...
2
votes
1answer
118 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)
0
votes
1answer
41 views
rcs and graphical diff
I have a machine running Ubuntu 6.06. Source files under rcs (no git available).
I need to visually compoare older revs of files with the checked out version.
Until now I have moved the file and ...
2
votes
1answer
626 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 ...
4
votes
1answer
215 views
Why does diff fail when invoked from a Makefile?
Narrow-down of a patch problem I am trying to troubleshoot:
Only two files, each with a size of 1 byte:
file a (containing 'a')
file b (containing 'b') and
Goal is to make and then apply a patch ...
0
votes
0answers
60 views
How to compare two rfs directories with `diff`?
I've two RFS (RFS = Root File System) directories, which I would like to compare to each other with diff. Both directories represent an RFS of some other system, and they may contain links. If those ...
2
votes
3answers
101 views
Hot to make diff check a symlink link itself?
In Linux one can use the command diff to check for differences of files. I use it to check for differences across two modules, both copied to /tmp.
However, both modules have symlinks, which might ...
1
vote
3answers
534 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
...
9
votes
5answers
284 views
Diff head of files
I have two files. One file, I suspect, is a subset of the other. Is there a way to diff the files to identify (in a succinct manner) where in the first file the second file fits?
3
votes
1answer
77 views
How to create a patch ignoring indentation differences in the code?
I'm trying to create patch a file using diff tool.But facing an issues.The way I am doing is below.
I've created one Directory named a and put original file in to it.
a/original_file.c
Now I have ...
3
votes
4answers
681 views
Can I get the opposite of `diff -q` — matching identical files without printing their contents
I have a number of files in a directory, and I want to check that they are all unique. For simplicity, let's say I have three files: foo.txt, bar.txt and baz.txt. If I run this loop, I will check them ...
3
votes
1answer
420 views
How to pipe diff into Kompare?
I want to quickly compare files in two different directories to see if the files are the same (same content). I want to see the results in Kompare (I'm on KDE - Kubuntu 12.04).
Here's my diff ...
1
vote
2answers
92 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 ...
2
votes
2answers
209 views
Understaning of diff output
I have file1.txt
this is the original text
line2
line3
line4
happy hacking !
and file2.txt
this is the original text
line2
line4
happy hacking !
GNU is not UNIX
if I do: ...
1
vote
1answer
192 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, ...
0
votes
1answer
26 views
Read files in Directory and take diff
I have two directories named comp1 and comp2 and both have files named file1 and file2.
I need a bash script which read file1 from both the directories and take diff of each file and redirect to some ...
2
votes
1answer
236 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++.
2
votes
2answers
154 views
Getting diff (or git diff) to show inserted hunks properly
Let's say I have two files. The first one has the contents:
line 1
foo
line 2
line 1
bar
line 2
And the second one has a new section inserted in the middle, so it looks like this:
line 1
foo
...
0
votes
3answers
53 views
how to compare total file
Suppose i have 2 config files such as:
file 1:
smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_sasl_authenticated_header = yes
virtual_gid_maps = static:5000
File 2:
...
11
votes
2answers
2k views
Is there a condensed side-by-side diff format?
I have two log files with thousands of lines. After pre-processing, only some lines differ. These remaining lines are either real differences, or shuffled groups of lines.
Unified diffs allow me to ...
7
votes
1answer
860 views
Is there bdiff (1) in Linux?
There is bdiff(1) command in Solaris, which allow you to diff(1) files with size bigger than your RAM size (http://docs.oracle.com/cd/E19683-01/806-7612/files-23/index.html).
Is there something like ...
