Bash script to temporarily rename files with specific file extensions, and revert to the original ones later.
This is a bash script which allows you to change the file extension of all files with a specific file extension in a certain directory (including sub directories). And, more importantly, it allows you to restore the changed files (and only these -- even if other files with the temporal extension already existed before you started) to their original file extensions later.
This is a hack to allow you to run tools which require a certain file extension to run on your files.
(I used it to use a javascript tool which would only accept .js files, but my source files were React.js files using the .jsx file extension. I also had test files in there which had the .js file extension already, and I wanted to keep that extension.)
Download or clone the script from github, make sure it is executable.
git clone https://github.com/dfsp-spirit/tmp_change_file_ext.git
cd tmp_change_file_ext
chmod +x ./tmp_change_file_ext.sh
Make a backup of the directory you want to change (or make a new, clean branch to work in if using version control like git).
Then run the script like this to get help:
./tmp_change_file_ext.sh -h
[TMPEXTCH] USAGE: ./tmp_change_file_ext.sh -c <options> [-f]
[TMPEXTCH] USAGE: ./tmp_change_file_ext.sh -r <options>
[TMPEXTCH] USAGE: ./tmp_change_file_ext.sh -h
[TMPEXTCH] valid options are:
[TMPEXTCH] -c : change mode (rename files according to settings and create mapping file)
[TMPEXTCH] -r : restore mode (restore previsously renamed files to their original file extensions)
[TMPEXTCH] -s <ext> : set source or original file extension to <ext>. Defaults to 'jsx' if omitted.
[TMPEXTCH] -t <ext> : set temporary file extension to <ext>. Defaults to 'js' if omitted.
[TMPEXTCH] -d <dir> : set directory to work on to <dir>. Defaults to '.' if omitted.
[TMPEXTCH] -f : force action, even if this means overwriting an existing file extension mapping file (only applies to change mode).
[TMPEXTCH] -m <file> : set mapping file location to <file>. Defaults to '~/.renamed_files.lst' if omitted.
[TMPEXTCH] -h : show this help and exit
[TMPEXTCH] EXAMPLES:
[TMPEXTCH] * Rename all jsx files to js in ~/my_project/:
[TMPEXTCH] ./tmp_change_file_ext.sh -c -d ~/my_project/
[TMPEXTCH] Restore the file names from the last action:
[TMPEXTCH] ./tmp_change_file_ext.sh -r -d ~/develop/my_project/
[TMPEXTCH] * Rename all txt files to lst in /tmp/doc/:
[TMPEXTCH] ./tmp_change_file_ext.sh -c -s txt -t lst -d /tmp/doc/
[TMPEXTCH] Restore the file names from the last action:
[TMPEXTCH] ./tmp_change_file_ext.sh -r -s txt -t lst -d /tmp/doc/
This will print the usage info, which currently looks like this:
This version of the script only considers the file extension as the part behind the last dot. Thus, it cannot be used to rename .tar.gz files to .tgz.
You can try it in the test/ directory, which contains a number of js and jsx files in sub directories.
Let's first inspect the directory structure and files we have in here, e.g., by running the tree command if you have it installed:
cd <repo>/test/
tree
Now let's rename the files:
../tmp_change_file_ext.sh -c
Note that renaming from jsx to js is the default, so we do not need the -s and -t options in this special case. (It would not hurt to add them of course, and
express that command as ../tmp_change_file_ext.sh -c -s jsx -t js -d . instead.)
Now inspect the directory structure again.
tree
You could make changes or run a tool now. But we will simply restore the original file extensions now:
../tmp_change_file_ext.sh -r
And inspect the directory structure again.
tree
This is released under the WTFPL, see http://www.wtfpl.net/ or the LICENSE file for details.