exec command and field descriptors.. - UNIX for Dummies Questions & Answers

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exec command and field descriptors..

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Thread: exec command and field descriptors..

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#5 (permalink)

12-04-2004

moxxx68

Registered User

Join Date: Mar 2004

Posts: 301

where does :
exec 3
exec 4
exec 5
come into the picture.. ?
so far I have understood the stdout and stderr
but i don't see how this the use of exec or the use of fd 3 can write to a file. or how fd 4 can read stndin and how fd 5 can stdout to tty.. i am not making the connection between the numbers and the exec command basically for 3 to 5.

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