Re: Email based attack on University
On Tue, Oct 15, 2019 at 11:13:00AM +1100, Keith Bainbridge wrote:
> I have an issue trying to run an alias. I get 'alias' not found error. So I
> sym-linked my .bashrc into /root. Same result.
> If I su, get # prompt and 'alias' works. Typing alias gets list as
> expected. exit. Try su -c and same results. exit.
> su -c "alias" - not found.
Well, of course. su -c runs a noninteractive shell. Noninteractive
shells do not read your aliases, because they don't read ANY shell
startup files. In addition, noninteractive *bash* shells disable
alias expansions. Because no sane person wants aliases interfering
with a script.
> So where do I put .bashrc for a su - "alias" to work, please.
I'm not sure I understand your intention. You want an alias to work
in some sort of scripted "su username -c '...'" command? Well, stop
If you want to use a command of your own devise in a script, create
that command as a script. Put it in /usr/local/bin and make it
executable. Then you can use it in other scripts, which includes
sh -c or su -c invocations.
> Should I have started a new topic?
Probably, but... meh.