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Full Discussion: Unix script help
Top Forums Shell Programming and Scripting Unix script help Post 302487825 by anurag.singh on Thursday 13th of January 2011 05:09:48 PM
Old 01-13-2011
Hi Scrutinizer, Could you please expalin above. How two pipe works?
Looks like if previous commands exits with 1, then command given after two pipe executes.
But normally exist status ($?)1 means error, and 0 means success.
 

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LEARN ABOUT HPUX

fdetach

fdetach(1M)															       fdetach(1M)

NAME

       fdetach - detach a STREAMS-based file descriptor from a filename

SYNOPSIS

       path

DESCRIPTION

       The  command detaches or disassociates a file descriptor for an open STREAMS device or pipe from its filename in the file system.  The path
       argument is the path that was previously associated with the file descriptor by the function.

       Operations on path will subsequently affect the file system node, not the STREAMS device or pipe.  The permissions and status of  the  node
       are  returned  to  the  state that they were in before the STREAMS device or pipe was attached.	Any other paths that the STREAMS device or
       pipe may be attached to are not affected.

       To successfully issue the command, the user must be superuser or must be the owner of the file and have write permission.

RETURN VALUE

       returns 0 (zero) on success.  If fails, it returns 1 and prints a message to

EXAMPLES

       To detach the file descriptor for the STREAMS file from its associated file system node, enter:

FILES

       NLS catalog for

SEE ALSO

       fattach(3C), fdetach(3C), streamio(7).

																       fdetach(1M)
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