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Old 07-23-2004, 12:11 PM   #1
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Registered: Jul 2004
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turning echo off

how can i turn off the echo, so that while my program is going on, the terminal is not disturbed by information of turning on & off of modes etc.
Old 07-24-2004, 02:37 PM   #2
Registered: Aug 2003
Location: kerala , India
Distribution: RH9 , FC1 ,
Posts: 141

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do u mean the echoing as in displaying what u enter on the screen itself?

in that case use stty -echo (see info stty 4 details)
Old 07-24-2004, 03:13 PM   #3
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Registered: Feb 2004
Location: Somerset, England
Distribution: Slackware 10.2, Slackware 10.0, Ubuntu 9.10
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If you mean redirecting program output then just start the program with:
programname 2> /dev/null
programname > /dev/null

The first one redirects error output, the second redirects normal output. Both direct it to the null device (i.e. you don't see it).
Old 07-24-2004, 03:15 PM   #4
Registered: May 2004
Distribution: Slackware 10
Posts: 63

Rep: Reputation: 15
If you want to suppress all output of a programme called some_programme, then just enter "some_programme > /dev/null". All the output of some_programme that would normally go to the console, will now be discarded. Only error messages will be displayed. If you want to discard all messages including error messages then just enter "some_programme 1> /dev/null 2>&1" You won't see anything then. For more info on this kinda redirection (as it's called), then you should read RUTE


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