Rename all files to lowercase in a specified diretory?

[Charles1718]

Hi People,

I'm currently trying to Rename all files with .txt in a specified directory to lowercase, with this commands below:

 for tup in find *.txt
do 
tup_file=$tup 
tow_file="echo $tup | tr [A-Z] [a-z]" 
mv $tup_file $tow_file 
done 
  

But somehow I always get this error Message "mv 'a-z' is not a Directory" ??

Thanks in Advance!
Charles

[fratermus]

Doing this off the top of my head, but any chance you really want to use `backticks` with your tow_file line to get the results of the output? Right now tow_file is being assigned that whole string, right?

[atreyu]

yeah, frat is right about the backticks.

also, i assume you left out the backticks on your find command in the code you posted, as it won't work as it. in any case, you don't need the find, you can more efficiently achieve the same list of txt files with a simple file glob, e.g.:

for file in *.txt; do

also, note that your code won't work as is if your files have white spaces in them.

[philix]

for tup in `find *.txt`; do tup_file=$tup ; tow_file=`echo $tup | tr [A-Z] [a-z]` ; mv $tup_file $tow_file ; done