Zsh Mailing List Archive Messages sorted by: Reverse Date, Date, Thread, Author

Re: Portably checking for shell level

X-seq: zsh-users 7876
From: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
To: Zsh Users <zsh-users@xxxxxxxxxx>
Subject: Re: Portably checking for shell level
Date: Tue, 17 Aug 2004 14:31:23 -0700 (PDT)
In-reply-to: <20040817185940.GA32231@DervishD>
Mailing-list: contact zsh-users-help@xxxxxxxxxx; run by ezmlm
References: <20040817185940.GA32231@DervishD>
Reply-to: zsh-users@xxxxxxxxxx

On Tue, 17 Aug 2004, DervishD wrote:

>     I have a shell script that cannot be sourced, because it must be
> run in a clean environment. Under zsh I achieve this using 'emulate
> -L zsh', or just by checking '$SHLVL' if the script won't run just by
> defaulting the ZSH options. The problem is: how to do this portably?

Try examining the value of "$-".  That's not foolproof, but at least it
can tell you whether someone is "."-ing your script into an interactive
shell.

Follow-Ups:
- Re: Portably checking for shell level
  - From: DervishD

References:
- Portably checking for shell level
  - From: DervishD

Messages sorted by: Reverse Date, Date, Thread, Author