tr问题

午夜聆听

我的系统是sco5.05,为什么用tr命令无法将文件中的大写字母转为小写字母呢?
例:
tr 'A-Z' 'a-z' < filename 或 tr "A-Z" "a-z" < filename


如果指定要转化的字母就好用,这是为什么呢?
例:
tr 'L' 'l' < filename

sdccf

#
#           The shell script below will convert all files in the current
#        directory from either Upper to Lower Case or from Lower to
#        Upper Case names (for example, file_name to FILE_NAME).
#        Save this file to "lcase" and then link it to "ucase".
#
for i in *
do
        echo "${i} \c"
        if [ $0 = "lcase" ]
        then
                mv  ${i} `echo ${i} | tr "[A-Z]" "[a-z]"`
        else
                mv  ${i} `echo ${i} | tr "[a-z]" "[A-Z]"`
        fi
done
echo "\nDone with ${0} "

午夜聆听

老法王这样也不行呀
tr "[A-Z]" "[a-z]" < filename
tr '[A-Z]' '[a-z]' < filename

makefile

[quote]原帖由 "午夜聆听"]t; filename[/quote 发表：

老大，我们怎么没问题啊？