Re: [gentoo-user] Can a script tell if it's running under X?

[Peter Gordon <admin@ramshacklestudios.com>]

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Kevin O'Gorman wrote:
| Is there a way for a script (bash, for instance) to know
| if it's running under X, such as in an xterm or konsole?
|
| I want to have scripts that run graphical tools if the
| infrastructure is present, and text tools otherwise.
| For me this is particularly useful for tools I don't use
| all that often, and can forget that a graphical version
| exists.

One way to do it (though I don't know how to do this in Bash) is to check X's
Process ID (PID). If `pidof X` returns an integer, than that's the PID of the
currently running X server. If X is not running it will return an empty string.

/home/peter $ pidof X
12521

/home/peter $ pidof non-running-app


/home/peter $

Hope this helps!

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