root@helpme:/# uname -a Linux helpme 3.2.0-4-686-pae #1 SMP Debian 3.2.51-1 i686 GNU/Linux root@helpme:/# echo foo | tr [a-z] [A-Z] foo root@helpme:/# cd usr root@helpme:/usr# echo foo | tr [a-z] [A-Z] FOO root@helpme:/usr# cd ../home/ root@helpme:/home# echo foo | tr [a-z] [A-Z] FOO root@helpme:/home# cd ../root/ root@helpme:~# echo foo | tr [a-z] [A-Z] foo root@helpme:~# dash # pwd /root # echo foo | tr [a-z] [A-Z] foo # cd ../usr # echo foo | tr [a-z] [A-Z] FOO # tr --version tr (GNU coreutils) 8.13 ...
Somebody, please tell me I'm not drooling on myself in a straightjacket in a padded room. Oh, I just discovered that the coreutils manual (even though not the tr man page) says gnu tr doesn't support brackets for ranges, which only ‟sometimes” work. But seriously, it's supposed to depend on the current directory?
