Unix Return Values
- Every program has a return value
- Zero means okay, everything else is bad
- In shells, the return value of the last command is usually $?, which is kind of the same as Perl -- don't worry about that now.
| CPU: Perl, Fall 2005 | Perl, Week 4: More Arrays, Context, Subroutines, Lexical Variables | #31 |
| Copyright © 2005 Ian Langworth |