I was executing a command "who -ms" from a CHUI application but i get below message,
It seems that who command can be executed only when we are logged directly in unix box as we have terminal.
Is there a way to get rid of this problem , or anyother command where i can get machine name of the terminal from where i am logged in?
Code:
process not attached to terminal x
xUsage: who [-AabdHilmpqrsTtuwX?] [am {i,I}] [file] x
x -A Accounting entries x
x -a All (AbdHlprTtu) options x
x -b Boot time x
x -d Dead processes x
x -H Display a header (title) x
x -l Login processes x
x -m Information about current terminal (same as 'am i' x
x -p Processes other than getty or user process x
x -q Quick (only user and host name) x
x -r Run level x
x -s Short form (suppress Activity and PID) x
x -T,w Status of tty (+ writable, - not writable, x exclusive open, ? hx
x -t Time changes x
x -u,i Activity and PID of shell x
x -X Expanded user names
Moderator's Comments:
Please use next time code tags for your code and data
I just changed from windows NT to XP and I am no longer able
to connect to my unix system. I used to use hyper terminal -- which acts as dumb terminal to my main frame unix system. I think one of the options used to be "direct to comX". This option isn't listed now. I use a serial port and the... (2 Replies)
Any chance someone could look up the Whois for www.weddingchannel.la and www.art.la at the following link:
whois -h whois.afilias-grs.info domainname.la
Thanks in advance!!!
rdm (4 Replies)
Hi Group ,
I m trying to execute commands on some other system using write command but inspite of executing the commands they r passed as simple messages.
- i m writing
>write user-id
! ls
o
ctrl-d
inspite of executing the command ls,other terminal shows ! ls.
Thnx in advance. (2 Replies)
Hello,
I am trying to learn how to pass something more than a one-command startup for gnome-terminal.
I will give an example of what I'm trying to do here:
#! /bin/bash
#
#TODO write this for gnome and xterm
USAGE="
______________________________________________
${0##*/}
run... (0 Replies)
Hello,
I have a PERL-TK based GUI from which I want to launch a command on an existing UNIX terminal (this is also the parent terminal for this perl based gui window). The command I want to launch is interactive (there is no intention to interact with that command from the same PERL gui i.e. no... (2 Replies)
Hello,
I'm looking for some code that will list sequences of files as a single line.
ie, sequences of files like this:
filename.1.ext
filename.2.ext
filename.3.ext
filename.4.ext
filename.5.ext
filename.6.ext
filename.7.ext
filename.8.ext
filename.9.ext
filename.10.ext
would... (6 Replies)
Hello i am having an issue with bash script and this is the code
now=$(cat hosts1.txt | awk '{print $2;}')
while read n ;do
ssh root@$now 'useradd test1; echo -e "test1\ntest1" | passwd test1 && echo "test1 ALL=(ALL:ALL) ALL" >> /etc/sudoers'
When i execute only part with cat, it... (8 Replies)
I need to execute apt-cdrom to designate the pendrive using LM 18.3x 'live". (instead of CD-Rom)
Rick (7 Replies)
Discussion started by: 69Rixter
7 Replies
LEARN ABOUT CENTOS
tty
TTY(4) Linux Programmer's Manual TTY(4)NAME
tty - controlling terminal
DESCRIPTION
The file /dev/tty is a character file with major number 5 and minor number 0, usually of mode 0666 and owner.group root.tty. It is a syn-
onym for the controlling terminal of a process, if any.
In addition to the ioctl(2) requests supported by the device that tty refers to, the ioctl(2) request TIOCNOTTY is supported.
TIOCNOTTY
Detach the calling process from its controlling terminal.
If the process is the session leader, then SIGHUP and SIGCONT signals are sent to the foreground process group and all processes in the
current session lose their controlling tty.
This ioctl(2) call works only on file descriptors connected to /dev/tty. It is used by daemon processes when they are invoked by a user at
a terminal. The process attempts to open /dev/tty. If the open succeeds, it detaches itself from the terminal by using TIOCNOTTY, while
if the open fails, it is obviously not attached to a terminal and does not need to detach itself.
FILES
/dev/tty
SEE ALSO chown(1), mknod(1), ioctl(2), termios(3), console(4), tty_ioctl(4), ttyS(4), agetty(8), mingetty(8)COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2003-04-07 TTY(4)
01-26-2012
