UNIX for Dummies Questions & Answers

Hi guys..

Please help me.. I am a newbie to Unix..

How to change the extension of all .txt files in my current directory and also subdirectories to .my extension all together??

Regards,

Mahesh..

The mmv command, if you have it, can rename the files in this fashion, but ordinary shell globbing cannot. For mmv you have to be careful to quote the strings to prevent the shell thinking its a glob.

Code:

mmv '*.txt' '#1.my'

Changing subdirectories is a bit tougher, since name matching cannot tell you what a directory is. So find will find all directories in the current directory, and feed them into a loop that renames them one by one.

Code:

find ./ -type d -maxdepth 1 -mindepth 1 | while read DIR ; do mv "$DIR" "$DIR.my" ; done

I think he meant rename files including those in the subdirectories, not rename the subdirectories.

The general process is still the same as the one posted

In bash/Korn

Code:

find . -type f -name "*.txt" | while read file ; do mv "$file" "${file%%.txt}.my" ; done