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Date: Tue, 17 Jun 2014 20:34:19 +0400
From: Andrey Repin <anrdaemon AT yandex DOT ru>
Reply-To: cygwin AT cygwin DOT com
Message-ID: <1195111819.20140617203419@yandex.ru>
To: Ernie Rael <err AT raelity DOT com>, cygwin AT cygwin DOT com
Subject: Re: Change PS1 when running as administrator
In-Reply-To: <53A06B0D.9050806@raelity.com>
References: <1402994703 DOT 51470 DOT YahooMailNeo AT web172206 DOT mail DOT ir2 DOT yahoo DOT com> <53A06B0D DOT 9050806 AT raelity DOT com>
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Greetings, Ernie Rael!

> On 6/17/2014 1:45 AM, GrahamC wrote:
>> If we are looking for other alternatives the GROUPS environment variable can also be used:
>>
>> PS1='\[\e]0;\w\a\]\n\[\e[32m\]\u@\h \[\e[33m\]\w\[\e[0m\]\n\$ '
>> for G in "${GROUPS[@]}"; do
>>      if [ "$G" = 544 ]; then
>>          PS1='\[\e]0;Administrator \w\a\]\n\[\e[32m\]\u@\h \[\e[33m\]\w\[\e[0m\]\n# '
>>      fi
>> done

> Speaking of alternatives,

> For matching in bash, something like

>      [[ $(id -G) =~ \b544\b ]]

> was suggested (the suggestion used symbolic name instead of a number and
> didn't use word boundary). Seems like word boundary is needed, but I
> couldn't get this to work. Are the regex boundary matchers not
> supported  by bash =~ operator?

I don't think bash equivalent of test implements Perl RE.
Neither the base test implementation, to that extent.

> Can use something like

>      id -G | grep -q "\b544\b"

> (or echo ${GROUPS[@]} | ...)


--
WBR,
Andrey Repin (anrdaemon AT yandex DOT ru) 17.06.2014, <20:30>

Sorry for my terrible english...


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