using the wall or write cmd

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Problems with "write" and "wall"

Hello, I am using VirtualBox to simulate a small network with two Linux computers, the host is Mac OS X. My problem is that I can't send "write" and "wall" messages from the host to one of those Linux computers. Here is what works: - The virtual Linux computer answers "ping" messages that have...

2. Shell Programming and Scripting

Perl open(CMD, "cmd |"); buffering problem..

Hello, There's a third-party application's command that shows the application's status like "tail -f verybusy.log". When use the command, the output comes every 1-sec. but when it goes in a script below the output comes every 8-sec...What is the problem and how can I fix it? open(CMD,...

3. Shell Programming and Scripting

Unix cmd prompt how to get old cmd run?

Hi, I am using SunOS I want to serch my previous command from unix prompt (like on AIX we can search by ESC -k) how to get in SunOs urgent help require.

4. Shell Programming and Scripting

sed command works from cmd line to standard output but will not write to file

Hi all .... vexing problem here ... I am using sed to replace some special characters in a .txt file: sed -e 's/_<ED>_/_355_/g;s/_<F3>_/_363_/g;s/_<E1>_/_341_/g' filename.txt This command replaces <ED> with � , <F3> with � and <E1> with �. When I run the command to standard output, it works...

5. IP Networking

read/write,write/write lock with smbclient fails

Hi, We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the...

6. Fedora

wall and write commands are not working

hi friends i am using fedora linux operating system on the server and two clients(with windows os) are connected to it(server ).but here wall and write cmds are not working to send messages from one system to another system . pls help me

7. UNIX Desktop Questions & Answers

Wall, Write, select users, pipe a text file, HELP Before I'm Bald!

OK... I'm fairly new to unix having the admin handed to me on a platter w/almost no training. However, being a programmer, I do pick up things fairly easily, but this one is getting the best of me. I have a unix server that runs multiple versions of the same ERP system, hand crafted for our...

8. Shell Programming and Scripting

communicating wth another user aside from "wall" and "write"

Hi, Can anyone suggest a Unix command or c-shell algorithm to simulate to behavior of "wall" command minus the "all users"? What I'm trying to do is to send a notice to just one particular user but i dont want other remotely-logged-on users to receive the message (on the pseudo-terminals). I...

9. UNIX for Dummies Questions & Answers

Need info:"talk,write and wall"

hi nu 2 this forum., can any one tell me how to 'talk' to a person on other system who is connected in a network(LAN) via terminal....... and when to use wall,write and talk.. regards leenus :)

10. UNIX for Dummies Questions & Answers

man <cmd> >> cmd.txt

I've noticed most of my postings here are because of syntax errors. So I want to begin compiling a large txt file that contains all the "man <cmd>" of the commands I most have problems with. I ran a "man nawk >> nawk.txt" but it included a header/footer on each "page". Anyone know how I'd be...

LEARN ABOUT DEBIAN

wall

WALL(1) 							   User Commands							   WALL(1)

NAME

     wall -- write a message to users

SYNOPSIS

     wall [-n] [-t TIMEOUT] [file]

DESCRIPTION

     Wall displays the contents of file or, by default, its standard input, on the terminals of all currently logged in users. The command will
     cut over 79 character long lines to new lines. Short lines are white space padded to have 79 characters. The command will always put carriage
     return and new line at the end of each line.

     Only the super-user can write on the terminals of users who have chosen to deny messages or are using a program which automatically denies
     messages.

     Reading from a file is refused when the invoker is not superuser and the program is suid or sgid.

OPTIONS

     -n, --nobanner
		 Supress banner

     -t, --timeout TIMEOUT
		 Write timeout to terminals in seconds. Argument must be positive integer. Default value is 300 seconds, which is a legacy from
		 time when people ran terminals over modem lines.

     -V, --version
		 Output version and exit.

     -h, --help  Output help and exit.

SEE ALSO

     mesg(1), talk(1), write(1), shutdown(8)

HISTORY

     A wall command appeared in Version 7 AT&T UNIX.

AVAILABILITY

     The wall command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux							   April 2011								util-linux

Shell Programming and Scripting