Dear all:
According to the reference document, colon, ":", in bash is used as null command and I can realize this by following example:
if condition
then : # Do nothing and branch ahead
else
take−some−action
fi
But how about the following ex1 and ex2 mean?
Ex1:
: ${username=`whoami`}
${username=`whoami`}
Ex2:
: $((n = $n + 1))
(( n = n + 1 ))
Appreciate your help,
vichy
--
To unsubscribe from this list: send an email with
"unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx
Please read the FAQ at http://kernelnewbies.org/FAQ
