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Top Forums UNIX for Dummies Questions & Answers Shell script to rename or change file extension case. Post 302384774 by Sheldon on Wednesday 6th of January 2010 09:21:11 AM
Old 01-06-2010
Shell script to rename or change file extension case.

I searched the forum, but there was different type of rename.

Hello.

I have files in folder.

Like:

xxxxxxxx1.html
or
xxxxxxxx2.txt
or
xxxxxxxx3.tar.gz

and how to rename or change file extension case to

xxxxxxxx1.htm
or
xxxxxxx2.TXT
or
xxxxxxx3.tar or to xxxxxx3.TAR.GZ.

I think if rename works, then it can change lower/uppercase too hopefully.
 

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RENAME(1)							   User Commands							 RENAME(1)

NAME
rename - rename files SYNOPSIS
rename [options] expression replacement file... DESCRIPTION
rename will rename the specified files by replacing the first occurrence of expression in their name by replacement. OPTIONS
-v, --verbose Give visual feedback which files where renamed, if any. -V, --version Display version information and exit. -s, --symlink Peform rename on symlink target -h, --help Display help text and exit. EXAMPLES
Given the files foo1, ..., foo9, foo10, ..., foo278, the commands rename foo foo0 foo? rename foo foo0 foo?? will turn them into foo001, ..., foo009, foo010, ..., foo278. And rename .htm .html *.htm will fix the extension of your html files. WARNING
The renaming has no safeguards. If the user has permission to rewrite file names, the command will perform the action without any ques- tions. For example, the result can be quite drastic when the command is run as root in the /lib directory. Always make a backup before running the command, unless you truly know what you are doing. SEE ALSO
mmv(1), mv(1) AVAILABILITY
The rename command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux June 2011 RENAME(1)
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