recursively change file name from uppercase to lowercase (or viceversa)

find . -type f|while read f; do mv $f `echo $f |tr '[:upper:]' '[ :lower:]'`; done
or, to process a single directory: for f in *; do mv $f `echo $f |tr '[:upper:]' '[:lower:]'`; done
Sample Output
$ ls
KK1.C  KK2.C  KK3.C  KK4.C
$ find . -type f|while read f; do mv $f `echo $f |tr '[:upper:]' '[
:lower:]'`; done
$ ls
kk1.c  kk2.c  kk3.c  kk4.c

By: berta
2009-02-17 09:44:38

9 Alternatives + Submit Alt

What Others Think

I prefer the use of the 'rename' command in this situations: uppercase to lowercase: rename 'y/A-Z/a-z/' * lowercase to uppercase rename 'y/a-z/A-Z/' *
milmazz · 695 weeks and 2 days ago
Now I'm in exile seein' you out kitchen remodeling tacoma
tillyracker · 53 weeks and 1 day ago
seofox · 31 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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