TIL about the
rename command utility. It allows us to rename files using a
Perl Common Regular Expression. Suppose we have the following files:
$ ls temp1.txt temp2.txt temp3.txt
Now we want to rename our files from
final, but are not really
sure how to craft our regular expression. In this case we can use the
$ rename -n 's/temp/final/' *.txt 'temp1.txt' would be renamed to 'final1.txt' 'temp2.txt' would be renamed to 'final2.txt' 'temp3.txt' would be renamed to 'final3.txt'
And when we are ready:
$ rename 's/temp/final/' *.txt $ ls final1.txt final2.txt final3.txt
For MacOSX users
rename can be installed through:
brew install rename.
tldr tool does a great job summarizing the common use cases, but as always
rename explains the entire scope.