Subject: Re: Re: [ast-users] how to identify a login shell, preferably portably
--------
> By definition, a login shell has "-" as the first character of $0. The
> following test should work for both ksh and bash:
>
> if [[ $0 == -* ]]; then echo "This is a login shell"; fi
>
> --
> Ron Isaacson
> Morgan Stanley
> [EMAIL PROTECTED] / (212) 276-1144
> _______________________________________________
>
A login shell has a "-" as the first character of the basename of $0 so
that
if [[ ${0**/} == -* ]]; then echo "This is a login shell"; fi
would be better. However, login programs typically only use the
basename as argv[0] so this distinction is usually unnecessary.
David Korn
[EMAIL PROTECTED]
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