Rich’s sh (POSIX shell) tricks

These issues mean echo "$var" can sting you whenever you do not have strict guarantees about the contents of var (for example that it contains a nonnegative integer). Even if you’re a GNU/Linux-centric jerk who thinks all the world is a Bash and you don’t care about portability, you’ll run into trouble someday when you happen to read a “-n” or “-e” or “-neEenenEene” into var and suddenly your scri

[tarao]

shell