Capturing a PID.

[der.hans]

Am 25. May, 2001 schwäzte Tom Bradford so:

> $! is the most recent program executed.

Most cool. Completely forgot about that one. Needed it yesterday...

Know of any place that lists these things? Something similar to perl's "man
perlvar" for sh/bash/ksh/tcsh, etc. would be most helpful.

While the bash manpage is almost as long as Moby Dick it doesn't seem to
have this info, especially not in a useful table :(.

ciao,

der.hans
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