Re: Non-POSIX shells

[ERDI Gergo <cactus cactus rulez org>]

On Tue, 5 Mar 2002, Sander Vesik wrote:

> You sure it's "$(varname)" and not "${varname}" ?

${} is for using a variable
$() is for running a command and returning its output

i.e.

FOO="foo"
BAR=${FOO}       # $BAR will be "foo"
BAZ=$(echo quux) # $BAZ will be "quux"

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