文件名大小写转换的shell脚本(4种方法)

//bug：当文件下还有文件夹，会把文件夹里最后一个文件名命名这个文件夹！
for uppercase in `ls`
do
for lowercase in `ls $uppercase|tr [A-Z] [a-z]`
do
mv $uppercase $lowercase 2>/dev/null
done
done

//bug：当有文件夹，和该sh在要改文件名大小写的目录内：
for file in `ls`
do
mv $file `echo $file|tr "[A-Z]" "[a-z]"`
done

#!/bin/sh
for I in `ls` ;
do
C=$(echo $I|linuxjishu/13830.html target=_blank class=infotextkey>awk '{print toupper($I)}')
mv $I $C
done

#!/bin/sh
# this script will change file name recursively with option
# -u: locase to upcase
# -l: upcase to lowcase
hint () {
echo " Usage: $0 [-l|-u] DIR1 [DIR2 DIR3...]
-l to lowcase
-u to upcase"
exit 1
}

if test $# -lt 2; then
echo "Too few arguments."
hint
fi

while [ "$1" ]; do
case $1 in
-l) ACTION="lo"
shift 1
;;
-u) ACTION="up"
shift 1
;;
*) if test -d $1; then
DIR="$DIR $1"
else
echo "no such directory --- $1"
hint
fi
shift
;;
esac
done

# echo $ACTION
# echo $DIR
FOUND=`find $DIR | sort -r`

for i in $FOUND; do
DN=`dirname $i`
BS=`basename $i`
loBS=`echo $BS | tr '[A-Z]' '[a-z]'`
upBS=`echo $BS | tr '[a-z]' '[A-Z]'`

NAME1=$DN/$BS

if [ "$ACTION" = "lo" ]; then
NAME2=$DN/$loBS
elif [ "$ACTION" = "up" ]; then
NAME2=$DN/$upBS
fi

if [ "$NAME1" = "$NAME2" ]; then
echo "****: $NAME1 ---x--- $NAME2 identical!"
else
echo "- renaming $NAME1 --> $NAME2"
mv $NAME1 $NAME2
fi
done