From: Roger Pack <rogerpack2005@...>
Date: 2011-10-06T02:49:53+09:00
Subject: Re: after gem released v 0.8.1

>> After includes the "after" command line utility
>> which allows one to wait until a process in another terminal
>> window ends before starting one locally.
>
> How is this different from unix's `wait`?

I believe the wait command can only wait for child processes (correct me 
if I'm wrong).

So "after" allows this.  If this is the case then it also allows you to 
not have to interrupt a running process to be able join on it to run a 
command after it completes.  It also allows you to "wait" from a 
separate terminal window, if that's convenient.  Sometimes it is, if you 
have flashing alerts setup or the like, and want to know when it's 
progressing from one to the next.
It's also compatible with windows native processes, which was it's 
original motivation.
I don't reach for it too often in Linux (though occasionally I do), but 
do use it all the time in windows, which has fewer options available :)

-=roger-

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