Re: Can $1 be set in a script?

On Fri, 31 Mar 2006 01:35:57 -0500, Bill Marcum <bmarcum@xxxxxxxxx>
wrote:

something=${1:-"default string"}

Bill I ran across this exact same construction before in connection
with an ~/.xinitrc script.

Would you please tell me what the syntax means of:
(1:-"default string")

I _guess_ it represents a variable.
What does the colon and minus sign signify?

Larry


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