examples/functions/lowercase

   1 #! /bin/bash
   2 #
   3 # original from
   4 # @(#) lowercase.ksh 1.0 92/10/08
   5 # 92/10/08 john h. dubois iii (john@armory.com)
   6 #
   7 # conversion to bash v2 syntax done by Chet Ramey
   8
   9 lowercase()
  10 {
  11         for file; do
  12                 filename=${file##*/}
  13                 case "$filename" in
  14                 */*)    dirname=${file%/*} ;;
  15                 *) dirname=.;;
  16                 esac
  17                 nf=$(echo $filename | tr A-Z a-z)
  18                 newname="${dirname}/${nf}"
  19                 if [ "$nf" != "$filename" ]; then
  20                         mv "$file" "$newname"
  21                         echo "lowercase: $file -> $newname"
  22                 else
  23                         echo "lowercase: $file not changed."
  24                 fi
  25         done
  26 }