I just came up with this recipe to change the default PS1 value to use red for
the user@host part of the prompt and to change the $ character to a #:
if id | grep -qi 'member of administrators group'
then
export PS1=$(echo "$PS1" | sed -e 's_32_31_' -e 's_\\\$_#_')
fi
I’m not certain the string match on the output of id(1) works everywhere. Is
there a better way to check for admin privileges under Cygwin? You can’t check
for UID or EUID == 0, for example, as you’d do on a true POSIX system.
Perhaps something like this should go into the default /etc/profile?
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