prefix all commands?

[River Tarnell <river@xxxxxxxxxxxxx>]

hello,

i would like to write a script which can prefix all commands with "pfexec ".  
for example, if the user runs "ls", the shell should actually run "pfexec 
ls".  similarly, "a | grep b" should become "pfexec a | pfexec grep b".

is there any way to do this?

	- river.

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