Issue
I am renaming files and directories. Basically, all I want to do is strip out spaces and replace them with underscores and finally make lower case. I could do one command at a time: $ rename "s/ /_/g" * , then the lower case command. But I am trying to accomplish this all in one line. Below all I am able to accomplish is strip out the spaces and replace with _ but it doesn’t make lower case. How come?
find /temp/ -depth -name "* *" -execdir rename 's/ /_/g; s,,?; ‘
Original file name:
test FILE .txt
Result: (If there is a space at the end, take out)
test_file.txt
Solution
rename 's/ +\././; y/A-Z /a-z_/'
Or, combined with find:
find /temp/ -depth -name "* *" -exec rename 's/ +\././; y/A-Z /a-z_/' {} +
To target only files, not directories, add -type f:
find /temp/ -depth -name "* *" -type f -exec rename 's/ +\././; y/A-Z /a-z_/' {} +
Shortening the names
Would it be possible to rename the file with the last three characters of the original file for example from big Dog.txt to dog.txt?
Yes. Use this rename command:
rename 's/ +\././; y/A-Z /a-z_/; s/[^.]*([^.]{3})/$1/'
Answered By - John1024 Answer Checked By - Dawn Plyler (WPSolving Volunteer)