Some Bourne Shell Program Control Varibles.

[robertd at ncoast.UUCP]

  Does any one know how to compare a
character, subtract 31 from the ascii
value of the character?

  Also, can some one give me a list
of program control varibles, I am
trying to add some new features to 
Bourne Shell(sh varibles, not csh).

  Thanx in advance.

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[ UUCP:robertd!ncoast                 ]
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[ "Memory fault -- core dumped"       ]
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