[X-Unix] Bash scripting Question
Stroller
macmonster at myrealbox.com
Tue Aug 22 19:10:02 PDT 2006
On 22 Aug 2006, at 17:11, Russell McGaha wrote:
> ...
> I've got a situation where I running a script and need to wait
> till the output of a command is null:
>
> ex.
> NotNull = true
> While NotNull
> do
> fmsadmin status Clients #[returns a list of connected clients;
> I'd like to got thru
> this loop until either the output of the command is null or
> About 2-5 minutes have gone by]#
> done
>
> Can anyone give ANY pointers or examples on how to do this?
Hi there,
There are potentially a bunch of ways of doing this.
Do you have a manpage or other docs for the `fmsadmin` command,
please? I think it is part of filemaker pro?
Alternatively some examples of what "null" and "notNull" outputs
might typically look like.
The following example out to get you started:
$ ls
$ foo=`ls` ; if [[ "$foo" = "" ]] ; then echo "There are no files
in this directory" ; else echo "These files are in this directory:
$foo" ; fi
There are no files in this directory
$ > bar
$ ls
bar
$ foo=`ls` ; if [[ "$foo" = "" ]] ; then echo "There are no files
in this directory" ; else echo "These files are in this directory:
$foo" ; fi
These files are in this directory: bar
$
Stroller.
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