How the command "at" works?

[Oliver Grawert]

hi,
On Sa, 2016-08-06 at 09:34 -0500, Peng Yu wrote:
> 
> > Or do you specifically need "atd" to run bash shells?
> 
> I need atd be aware of any bash function defined in the bash shell
> when at is called. I don't think this is possible with the current
> version of at,
> > 
i assume you are aware that bash is only used as terminal login shell
for users in Ubuntu (and debian) ? 

the system level shell is dash, if your code is executed by the atd
system daemon it will likely execute by default in context of /bin/sh
(and thus the system shell), you should take that into account and
either write your shell scripts properly POSIX compliant or force the
shebang line inside the at job to /bin/bash ...

ciao
	oli
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