MESG(1) BSD General Commands Manual MESG(1)NAME
mesg -- display (do not display) messages from other users
SYNOPSIS
mesg [n | y]
DESCRIPTION
The mesg utility is invoked by a user to control write access others have to a terminal device. Write access is allowed by default, and pro-
grams such as talk(1) and write(1) may display messages on the terminal.
The first terminal device in the sequence of devices associated with standard input, standard output and standard error is affected.
Options available:
n Disallows messages.
y Permits messages to be displayed.
If no arguments are given, mesg displays the present message status to the standard output.
EXAMPLES
Disallow messages from other users to the current terminal:
mesg n
Allow messages from other users to ttyp1 (assuming you are also logged in on that terminal):
mesg y </dev/ttyp1
DIAGNOSTICS
The mesg utility exits with one of the following values:
0 Messages are allowed.
1 Messages are not allowed.
>1 An error has occurred.
COMPATIBILITY
Previous versions of the mesg utility wrote the message status to the standard error output and affected the terminal attached to standard
error without first trying the standard input or output devices.
SEE ALSO biff(1), talk(1), wall(1), write(1)STANDARDS
The mesg utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
A mesg command appeared in Version 1 AT&T UNIX.
BSD May 5, 2002 BSD
Check Out this Related Man Page
MESG(1) User Commands MESG(1)NAME
mesg - display (or do not display) messages from other users
SYNOPSIS
mesg [option] [n|y]
DESCRIPTION
The mesg utility is invoked by a user to control write access others have to the terminal device associated with standard error output. If
write access is allowed, then programs such as talk(1) and write(1) may display messages on the terminal.
Traditionally, write access is allowed by default. However, as users become more conscious of various security risks, there is a trend to
remove write access by default, at least for the primary login shell. To make sure your ttys are set the way you want them to be set, mesg
should be executed in your login scripts.
ARGUMENTS
n Disallow messages.
y Allow messages to be displayed.
If no arguments are given, mesg shows the current message status on standard error output.
OPTIONS -v, --verbose
Explain what is being done.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
EXIT STATUS
The mesg utility exits with one of the following values:
0 Messages are allowed.
1 Messages are not allowed.
>1 An error has occurred.
FILES
/dev/[pt]ty[pq]?
SEE ALSO login(1), talk(1), write(1), wall(1), xterm(1)HISTORY
A mesg command appeared in Version 6 AT&T UNIX.
AVAILABILITY
The mesg command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux July 2014 MESG(1)
we have two alpha stations which are connected on two sides on the same wan (64k leased line), here is one problem described as follow.
when i do a ftp to copy a file form one to another, an error mesg shown and the file lenth is 0 at last.
diamond> ftp 192.168.50.1
Connected to... (1 Reply)
I have the manpage for this utility on my system, but the utility itself is not there.
My friend has the utility, but it does not work, not even on the same machine.
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Dear all,
What should I do with the following error message:
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#include <sys/ipc.h>
#include <sys/msg.h>
int main()
{
int qid;
int t;
struct msgbuf mesg;
qid=msgget(IPC_PRIVATE,IPC_CREAT);
mesg.mtype=1L;
mesg.mtext=1;
t=msgsnd(qid,&mesg,1,0);
printf("%d",t);
}
the program prints -1 as the result of msgsnd ,which means that msgsnd doesn't... (1 Reply)
Assume client send the message " Hello ", i get output such as
Sent mesg: hello
Bytes Sent to Client: 6
bytes_received = recv(clientSockD, data, MAX_DATA, 0);
if(bytes_received)
{
send(clientSockD, data, bytes_received, 0);
data = '\0';... (2 Replies)
Hello...
i got an error in my SCO OpenServer 6. the error is:
msgcnt 1 vxfs: mesg 016: vx_ilisterr - / file system error reading inode 373
Can anyone help me? (1 Reply)
Hello,
I am trying to use the output of the who command to display some messages.
For instance, if users Joe, Jim, Sue, and Sally were generated from who I want to take that output but display it like this:
Hello Sue
Hello Jack
Hello etc etc
Probelm is i cant figure out how to... (11 Replies)
1. The problem statement:
What is the mesg value set for your environment? If it is on, how would you turn off your current
session? How would you set it permanently?
3. The attempts at a solution :
Read Unix The textbook.
3rd chapter has many things like environment variables and... (5 Replies)
Hello everyone,
I am new to Unix and I am stuck with a problem. I need only a single command to display the output of who and then add the total number of users and display at the bottom of that output.
Example-: (Expected output)
sreyan@debian:~$ <command>
sreyan tty7 ... (7 Replies)
Hi guys,
How to write terminal contents into a file in Unix operating system
Actually I created GUI by using Gtk2-perl. I want to display data on GUI whatever the contents writing on terminal. So which command I have to use and where that command to be run I mean in shell script or Perl... (2 Replies)
OS: HP-UX B.11.31 U ia64
shell : /sbin/sh
Messages like "debug3: Wrote 48 bytes for a total of 15837" are thrown in my terminal after each key stroke. If I try to type a command such message appears after each character I type. If I simply press enter messages like below appear.
... (1 Reply)