You could simply try the X version first. If the X server fails to appear, exec returns with an error -- the only way exec can return. Then try the command-line version. 

exec "$bin/$name.X", @args;
exec "$bin/$name.cmd", @args;

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After Compline,
Zaxo

In reply to Re: How to detect X? by Zaxo
in thread How to detect X? by blazar

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