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Re: Change PS1 when running as administrator

GrahamC wrote:
On Monday, 16 June 2014, 12:25, Frank Fesevur<>  wrote:


I recently bought a new home computer, so I switched from XP to Win81.
With Win81 every now and then I need to start cygwin as administrator
(right click shortcut or tile, run as administrator) to do things that
I can't do as a normal user.

When I run as administrator I change my PS1 from "$" to "#" with these
line in ~/.bashrc.

if id -Gn | grep -i Administrators>  /dev/null
     PS1='\[\e]0;\w\a\]\n\[\e[32m\]\u@\h \[\e[33m\]\w\[\e[0m\]\n# '
     PS1='\[\e]0;\w\a\]\n\[\e[32m\]\u@\h \[\e[33m\]\w\[\e[0m\]\n\$ '

I don't know if the test can be done a better/easier way, but it works
for me on a Dutch Win81. I tested it with both 1.7.30 and a recent
AD/SAM snapshot.

If more people like this idea, maybe it could included in /etc/bash.bashrc?


Personally I use a test like:  if [ -w /etc ] for this, which works provided a write ACL has not been added for ordinary users on the directory \cygwin\etc. Administrators have write access to this directory.

Bash supports regular expressions, so if [[ `id` =~ Administrators ]] is a shorter test equivalent to your example.

You might want to look at this thread:

I use the registry test, but the id method would also work.

Chris J. Breisch

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