Help with exec command and file descriptors??

rfourn · #1 (**permalink**) 07-18-2007

im having trouble with the comprehending the exec command and the use of file descriptors.
given:

#!/bin/sh

exec 4>&1
exec 1>&2
exec 2>&4
exec 4>&-

echo Hello

would the standard output of this script be sent to STDOUT, STDERR or neither and why???

thanks for the help.

Perderabo · #2 (**permalink**) 07-18-2007

Please stop posting homework/classwork questions.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
Help with exec command and file descriptors II	masaki	Shell Programming and Scripting	2	01-03-2009 11:27 PM
exec command and field descriptors..	moxxx68	UNIX for Dummies Questions & Answers	5	12-04-2004 05:58 PM
file descriptors	a25khan	UNIX for Dummies Questions & Answers	3	01-27-2004 07:46 PM
File Descriptors	shibz	UNIX for Advanced & Expert Users	3	12-18-2002 10:12 AM
File Descriptors	s_chordia	High Level Programming	2	12-24-2001 11:45 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by