Linux rename file extension

HowTo: Unix / Linux Rename File Extension From .OLD to .NEW

To rename a file called resume.docz to resume.doc, run:

To rename file extension from .txt to .doc, enter:

To fix the extension of all your .txt files, enter::

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The above command will rename all *.txt files to *.doc i.e. fix the extension of your txt files.

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Comments on this entry are closed.

How to rename multiple file with a single cmd …

“rename .txt .doc *.txt” was great command . Thank you

I have missed up my photos directory,
how can I rename all files
07.jpg.13 07.jpg.14 07.jpg.15 ……..

to the correct format
07-13.jpg 07-14.jpg 07-15.jpg …..

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Linux Rename File Command

How to rename a file Linux?

The syntax is as follows:
mv old-file-name new-file-name
mv [options] old-file-name new-file-name
mv file1 file2

Examples: Renaming files with mv Command

In this example, rename a file called resumezzz.pdf to resume.pdf. Open a command-line terminal (select Applications > Accessories > Terminal), and then type:
mv resumezzz.pdf resume.pdf
If resumezzz.pdf is located in /home/vivek/docs/files directory, type:
cd /home/vivek/docs/files
mv resumezzz.pdf resume.pdf
OR
mv /home/vivek/docs/files/resumezzz.pdf /home/vivek/docs/files/resume.pdf
Use the ls command to view files:
ls -l file1
ls -l file1 file2
ls -l /home/vivek/docs/files/*.pdf
ls -l *.pdf

Linux rename a file syntax

In short, to rename a file:
mv file1 file2
You can get verbose output i.e. mv command can explain what is being done using the following syntax:
mv -v file1 file2
Sample outputs:

To make mv interactive pass the -i option. This option will prompt before overwriting file and recommended for new users:
mv -i file1 file2
Sample outputs:

How to use rename command to renames multiple files

The syntax is:
rename ‘s/old/new/’ files
rename [options] ‘s/old/new/’ files
For example, rename all perl files (*.perl) to *.pl, enter:
rename ‘s/perl/pl/’ *.perl
OR
rename -v ‘s/perl/pl/’ *.perl
Sample outputs:

The above command changed all files with the extension .perl to .pl. See “Howto Rename Multiple Files At a Shell Prompt In Linux or Unix” for more info.

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Detailed information about mv command

You can also view the manual page on mv using the following command:
man mv
OR
info mv
OR
man rename

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Changing all file’s extensions in a folder using CLI in Linux

How to change all file’s extensions in a folder using one command on CLI in Linux?

5 Answers 5

rename ‘s/.old$/.new/’ *.old

If you have the perl rename installed (there are different rename implementations) you can do something like this:

You could use a for-loop on the command line:

this will take all files with extension .old and rename them to .new

This should works on current directory AND sub-directories. It will rename all .oldExtension files under directory structure with a new extension.

Explanation: this recursively finds all files (-type f) starting from the current directory (.) and applies the move command (mv) to each of them. Note also the quotes around <>, so that filenames with spaces (and even newlines. ) are properly handled.

Not the answer you’re looking for? Browse other questions tagged linux shell or ask your own question.

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Change extension of file using shell script

How to change extension of all *.dat files in a directory to *.txt. Shell script should take the directory name as an argument. Can take multiple directories as arguments. Print the log of command result in appending mode with date and timestamp.

9 Answers 9

Bash can do all of the heavy lifting such as extracting the extension and tagging on a new one. For example:

Output redirection should be done by the shell when running the script

Leaving out argument validity checks

The first for loop by default loops on the $@ i.e. command-line arguments passed.

Follow Pben’s solution, if your filename contains blank space, you should use double quotation marks to the variable like the following:

Script, first finds the names of the given extensions. It removes the extension from names. Then adds backslash() for identification of terminal.

Then the ‘mv’ command executed. Here the ‘.temp’ folder is used to hide the process from user, in GUI.

The output files are saved inside the ‘.temp’ folder,later the ‘.temp’ folder is removed.

The top voted answer didn’t really work for me. I may have been doing something wrong. My scenario was trying to create a file with the original name, but with the date appended to it, along with changing the extension from .xslx to .csv. This is what worked for me:

So, for all the .dat files in a directory (without the date addition), you could run something like this:

From the above, this section of code just removed the extension:

And this section changes the .dat to .txt:

And by bumping them next to each other, it concatenates the two outputs into the filename. It’s like doing this:

Though, I did use STDOUT instead of the ‘mv’ command.

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Recursively rename files (change extension) in Linux

How do I rename all files in a directory, recursively, changing one file extension to another, for thousands of files in thousands of subfolders? I see a lot of commands that do almost what I want, but not quite.

7 Answers 7

of course remove the -v when actually doing it, or it will waste time displaying all the files

Remove the -n to actually perform the renaming.

Explanation

The above starts walking the directory tree starting at the current working directory ( . ). Every time a file name matches the pattern *.andnav (e.g., foo.andnav ) the following command is executed:

Where $0 is foo.andnav and $<0%.andnav>.tile replaces the .andnav suffix with .tile so basically:

I found this method is easier and easier to read:

At least on Ubuntu derivations rename takes a list of files from STDIN if none are on the command line. And this can be tested easily with:

until you get it right.

find -execdir rename

https://superuser.com/a/213146/128124 works directly only for suffixes, but this will work for arbitrary regex replacements on basenames:

or to affect files only:

-execdir first cd s into the directory before executing only on the basename.

Tested on Ubuntu 20.04, find 4.7.0, rename 1.10.

Convenient and safer helper for it

Sample usage to replace spaces ‘ ‘ with hyphens ‘-‘.

Dry run that shows what would be renamed to what without actually doing it:

Command explanation

The awesome -execdir option does a cd into the directory before executing the rename command, unlike -exec .

-depth ensure that the renaming happens first on children, and then on parents, to prevent potential problems with missing parent directories.

-execdir is required because rename does not play well with non-basename input paths, e.g. the following fails:

The PATH hacking is required because -execdir has one very annoying drawback: find is extremely opinionated and refuses to do anything with -execdir if you have any relative paths in your PATH environment variable, e.g. ./node_modules/.bin , failing with:

find: The relative path ‘./node_modules/.bin’ is included in the PATH environment variable, which is insecure in combination with the -execdir action of find. Please remove that entry from $PATH

-execdir is a GNU find extension to POSIX. rename is Perl based and comes from the rename package.

Rename lookahead workaround

If your input paths don’t come from find , or if you’ve had enough of the relative path annoyance, we can use some Perl lookahead to safely rename directories as in:

I haven’t found a convenient analogue for -execdir with xargs : Xargs: change working directory to file path before executing?

The sort -r is required to ensure that files come after their respective directories, since longer paths come after shorter ones with the same prefix.

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