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)
Check Out this Related Man Page
mesg(1) User Commands mesg(1)NAME
mesg - permit or deny messages
SYNOPSIS
mesg [-n | -y | n | y]
DESCRIPTION
The mesg utility will control whether other users are allowed to send messages via write(1), talk(1), or other utilities to a terminal
device. The terminal device affected is determined by searching for the first terminal in the sequence of devices associated with standard
input, standard output, and standard error, respectively. With no arguments, mesg reports the current state without changing it. Processes
with appropriate privileges may be able to send messages to the terminal independent of the current state.
OPTIONS
The following options are supported:
-n|n Denies permission to other users to send message to the terminal. See write(1).
-y|y Grants permission to other users to send messages to the terminal.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of mesg: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 if messages are receivable.
1 if messages are not receivable.
2 on error.
FILES
/dev/tty* terminal devices
/dev/pts/* terminal devices
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO talk(1), write(1), attributes(5), environ(5), standards(5)SunOS 5.10 31 Oct 1997 mesg(1)
How does one know that he/she has the skills and enough knowledge of Unix to start applying for unix sys admin jobs? I am learning by telneting into a free bsd system. Will this prepare me for a solaris job? (13 Replies)
Hi, I understand assignment qns are not allowed.
However, I need major help.. please teach me how to write a tcp/ip programme using C, wad are the websites that i can refer to?
wad are the codes required for it?
I have never done tcp/ip configurations before, and never learnt C before,... (13 Replies)
Hello everybody,
i'm dummy for unix but i want to learn something.
i want to search the working directory and its subdirectories( all ) to find the files which are more than 1024 bytes.
So which commands must i learn?
Thanks to all. (13 Replies)
What is your age? poses an interesting question, but the age categories had some room for improvement. So I thought that I would start a new poll with with a better distribution of age groups. As with the other poll, this is a public poll. People can click on the numbers to see who voted and... (37 Replies)
Hi ,
I am beginner in aix...
i am using the following command in my shell script to to copy the files from a secured server to my aix box...
/usr/local/bin/scp pickme@brad.wanted.com:../internal/mem_grp_details*
Should i use sleep command in my shell script for the script to copy the... (15 Replies)
how can i only display the result according to user input?
For example:
i have a data file(in the attachement), when the user enter "1" it will only display whole records with pid from the data file matches to the users entered. (13 Replies)
Can you please help me to edit parts of a file and write into a new file.
=====================================
Suppose I have a huge data dump in a file I need to search for a tag in that and cut few lines around that tag in the file. Is there a way to keep track of line numbers and operate on... (18 Replies)
Hello all
is there any free tool like linux tabbed terminal but for windows
im used to work with putty and its great but i wander if there something like putty
but with tabs
thanks (12 Replies)
i wanted to execute some terminal commands on local linux, parse their output and display it to the user, i checked netcat source code but i couldnt understance it since im new to c (and linux at the same time).
so i was wondering if there is away to run an instance of terminal hidden, read and... (15 Replies)
Hello everyone,
suppose there is a very big text file (>800 mb) that each line contains an article from wikipedia. Each article begins with a tag (<..>) containing its url. Currently there are 10^6 articles in the file.
I want to take random N articles, eliminate all non-alpharithmetic... (14 Replies)
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)
I dont know much about the available unix/linux OSs and there are so many that it is hard to research very many. I know this is a loaded question with so many devotees to particular OSs but I just need a good (free) OS that would work well for someone who learned some basic scripting in Mac OS X.... (18 Replies)
I'm trying to use the sytem() to send a terminal command. I haven't been able to run the program. Can someone show me how am I suppose to write this command: (echo "#o1" > /dev/ttyUSB1). Is there a better way to use the command on the C file so that when I call the file and run it on the terminal... (11 Replies)