Weird tr bug?

[John P. Rouillard]

Bill Becker said:
>biteme:~$ mkdir temp
biteme:~$ cd temp
>biteme:~/temp$ echo XoX | tr [A-Z] [a-z]
>xox
>biteme:~/temp$ touch m
>biteme:~/temp$ echo XoX | tr [A-Z] [a-z]
>mom

Don't forget that [a-z] is only the literal character [, a, -, z, ],
if there is no file in the directory that matches the [a-z] glob. In
your case, the single character file 'm' matches, and the shell turns
[a-z] into m, and you see the result.

Answer, use '' around shell metacharacters.


   echo XoX | tr '[A-Z]' '[a-z]'
   xox

works for me.


                                -- rouilj
John Rouillard
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My employers don't acknowledge my existence much less my opinions.