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Old 06-28-2010, 01:54 PM   #1
trist007
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How to redirect stdin and stderr to another terminal...


Is it possible to redirect stdout and stderr from one terminal say /dev/pts/2 to another /dev/pts/3?

I tried the following:
Code:
/dev/pts/2 2>&1 /dev/pts/3&
Then when I run a command the process stops.
Any ideas?

Last edited by trist007; 06-28-2010 at 03:00 PM.
 
Old 06-28-2010, 02:24 PM   #2
schneidz
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what command output are you trying to redirect ?:
Code:
[schneidz@hyper ~]$ w
 14:21:44 up 14:23,  3 users,  load average: 0.08, 0.07, 0.01
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
schneidz tty1     :0               Sun23   14:23m 16:43   0.27s pam: gdm-password
schneidz pts/0    :0.0             09:22    1:10m  0.05s  0.05s bash
schneidz pts/1    :0.0             13:11    1.00s  0.22s  0.17s w
[schneidz@hyper ~]$ echo hello > /dev/pts/0
[schneidz@hyper ~]$ echo hello 2>&1 > /dev/pts/0
...
[schneidz@hyper ~]$ hello
 
Old 06-28-2010, 03:04 PM   #3
trist007
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Trying to get the the output printing on Terminal A redirected to output on Terminal B.


Actually, I'm trying to redirect all stdout and stderr from terminal A to terminal B.

And then redirect stdin back from terminal B to terminal A.

Last edited by trist007; 06-28-2010 at 03:10 PM.
 
Old 06-29-2010, 03:22 AM   #4
16pide
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here is the syntax:
ls /qwerty being the command (obviously something that will fail so you can see the effect of redirecting errors)

ls /qwerty >/dev/pts/4 2>&1

maybe you want to experiment with the screen command if you want to share with someone else a shell session
 
Old 06-29-2010, 09:10 AM   #5
trist007
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Good stuff. Here's the situation I'm having.

I write a script. In this script, I pull a username from a database. I then userenv as that user. However, after I enter the user's password, it seems that stdin, stdout, and stderr are still printing to the tty that I was previously in before I completed the userenv command. I need to redirect those streams to the new tty that userenv opens.
 
  


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