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What are these different tty processes(tty1,tty2..) running as root mentioned n the list below.

 
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Top Forums UNIX for Dummies Questions & Answers What are these different tty processes(tty1,tty2..) running as root mentioned n the list below.
# 1  
Old 05-17-2012
Lightbulb What are these different tty processes(tty1,tty2..) running as root mentioned n the list below.
Hi,

I need your help to understand about different processes(tty1,tty2,tty3...) running as root as shown below .What exactly these processes do?

Code:
root@bisu-desktop:~# ps -eaf | grep -e tty -e UID
UID        PID  PPID  C STIME TTY          TIME CMD
root       761     1  0 10:30 tty5     00:00:00 /sbin/getty -8 38400 tty5
root       775     1  0 10:30 tty2     00:00:00 /sbin/getty -8 38400 tty2
root       778     1  0 10:30 tty3     00:00:00 /sbin/getty -8 38400 tty3
root       781     1  0 10:30 tty6     00:00:00 /sbin/getty -8 38400 tty6
root      1020   858  2 10:30 tty7     00:00:59 /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none
root      1580     1  0 10:30 tty1     00:00:00 /sbin/getty -8 38400 tty1
root      2606     1  0 11:03 tty4     00:00:00 /sbin/getty -8 38400 tty4 Thanks in advance!

Last edited by Scrutinizer; 05-17-2012 at 02:48 AM.. Reason: code tags
# 2  
Old 05-17-2012
ttys are not processes, but terminal names.
This User Gave Thanks to Scrutinizer For This Post:
crazybisu
# 3  
Old 05-17-2012
But then how they are coming under the process listing? and again there are several ttys(1..7), even If I am only using the machine and it is not on the network.
# 4  
Old 05-17-2012
Because there are processes that are using these TTY's. You are probably using Linux and then those would be the standard terminals that you'll find under the function keys..
This User Gave Thanks to Scrutinizer For This Post:
crazybisu
# 5  
Old 05-18-2012
Running the login process for the various ttys at the speed specified.

If you were to change to one of the alternate screens you would find the login: prompt waiting for you.

If you were to be on a terminal somewhere so that you could see the console screen (assuming that you are dealing with multiscreen) and were to kill the PID for the console screen you would see a new login prompt appear.
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crazybisu
 
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