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

Posted on in Categories , , last updated March 12, 2013

How do I rename a file called resume.docz to resume.doc? I would like to rename a .txt file as .doc file. How do I rename a file called foo.txt to foo.doc under Linux / Unix / Apple OS X / *BSD operating systems using the command prompt?

You need to use mv command. The syntax is as follows:

mv old-file-name new-file-name

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

mv resume.docz resume.doc
ls -l resume.doc

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

mv foo.txt foo.doc
ls -l foo.doc
## error ##
ls -l foo.txt

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

rename .txt .doc *.txt

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

Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin and a trainer for the Linux operating system/Unix shell scripting. He has worked with global clients and in various industries, including IT, education, defense and space research, and the nonprofit sector. Follow him on Twitter, Facebook, Google+.

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