Johannes Sixt venit, vidit, dixit 28.04.2009 16:51:
Michael J Gruber schrieb:
quoted
BTW, even dash has "test STRING" so portability doesn't require -n but I
think it's OK either way.
It is not if STRING is user input; it could be, e.g., '-f', and then the
command gives a syntax error because of a missing argument.
It's safer to use test -z and test -n unless the string to test is
completely under the control of the script.
Yep, that's true as a general rule. Here it's always preceeded by
"--reference=". But in any case I'm happy I suggested -n and it's in ;)
Michael