Hi
rc=255 is a program that does not
call exit with a specified value.
Other codes
rc=101 no at command file
rc=102 (stat(at_cmdfile,&buf)) was true, so stat(2) returned an error
rc=103 if set uid bit off,
original owner has given file
to someone else
rc=104 bad job open
rc=105 no audit id
rc=106 couldn't set group /user ids, exiting
rc=107 couldn't open stdin
rc=108 no stdin found
rc=109 couldn't open tmp as sh stdin
rc=110 couldn't open output file or /dev/null
rc=111 testing
rc=112 can't exec sh
rc=113 file lock problem
rc=127 can't fork
(this might also be return code from the shell)
Steve Steel
If you want truly to understand something, try to change it. (Kurt Lewin)