把当前目录下的所有文件名由大写(或小写)字母改为小写

作者：lg   来自：

#! /bin/sh # Usage: ./low.sh <-l | -u> #./low.sh -l directory 为全部转化为小写 #./low.sh -u directory 为全部转化为大写 # # 第二形参必须是目录，第一形参指定-l或-u # if [ $# -ne 2 ] ; then echo "Usage: ${0} <-l | -u> " exit 1 fi if [ ! -d ${2} -o "${1}" != "-l" -a "${1}" != "-u" ] ; then echo "Usage: ${0} <-l | -u> " exit 1 fi dir=`dirname "${2}"` cd ${dir} > /dev/null 2>&1 if [ $? -ne 0 ] ; then echo "Error: checking your ${dir}" exit 1 fi exec 1>/dev/null 2>&1 if [ "${1}" = "-l" ] ; then base=`basename "${2}" | tr "[A-Z]" "[a-z]"` else base=`basename "${2}" | tr "[a-z]" "[A-Z]"` fi mv -f "`basename ${2}`" "${base}" > /dev/null 2>&1 for entry in `find ${base}` do before="." for after in `echo "${entry}" | sed -e 's,/, ,g'` do tmp_entry="${before}/${after}" if [ "${1}" = "-l" ] ; then before=`echo "${tmp_entry}" | tr "[A-Z]" "[a-z]"` else before=`echo "${tmp_entry}" | tr "[a-z]" "[A-Z]"` fi mv -f "${tmp_entry}" "${before}" done done