linux系统 通过什么命令给其他用户发信息

首先， 使用who命令查看谁登陆了， 如：

song tty2 2013-05-08 10:51

abc pts/02013-05-10 11:45 (192.168.2.136)

boy pts/12013-05-10 09:15 (192.168.12.172)

其次， 使用write user 并写下信息， 按CTRL+C 结束输入， 如：

write song

hello, how are you?

<TRL+C>

经时song这个用户可看到如下信息：

Message from xiewu@droider on pts/4 at 13:13 ...

hello, how are you?

EOF

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

如果要启用/禁止其他用户向你发信息， 可用mesg命令:

mesg [y|n]

y Allow write access to your terminal.

n Disallow write access to your terminal.

禁止接受其它用户向你发信息可在命令行输入：

mesg n

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

如果想向所有的登陆用户发信息， 可以使用wall命令。

与write 命令类似的命令还有talk.

向Linux登录终端发消息

原创 2013年02月17日 18:00:09 1600

同一台服务器，可能有很多个用户登录在上面，每个用户都是一个系统终端，可以向其他终端发送消息，同在服务器上开发的开发人员可以简单的互动（不能回复）一下哈！

一，效果

先登录一个终端，如下：

[html] view plain copy

[root@localhost /]# who

root tty1 2013-02-16 18:14 (:0)

root pts/02013-02-17 02:01 (:0.0)

[root@localhost /]#

登录的终端为pts/0。然后再打开一个终端，如下：

[html] view plain copy

[root@localhost /]# who

root tty1 2013-02-16 18:14 (:0)

root pts/02013-02-17 02:01 (:0.0)

root pts/12013-02-17 02:02 (:0.0)

[root@localhost /]#

此时登录的终端为pts/1。现在假设pts/1发消息给pts/0。

[html] view plain copy

[root@localhost /]# write root pts/0

hello

在pts/0终端上收到消息如下：

[html] view plain copy

[root@localhost /]#

Message from root@localhost.localdomain on pts/1 at 02:03 ...

hello

在pts/0上只是收到消息，不能回复的。

再看一下write命令的解释吧

NAME

write - send a message to another user

SYNOPSIS

write user [ttyname]

DESCRIPTION

Write allows you to communicate with other users, by copying lines from

your terminal to theirs.

When you run the write command, the user you are writing to gets a mes-

sage of the form:

Message from yourname@yourhost on yourtty at hh:mm ...

Any further lines you enter will be copied to the specified user’s ter-

minal. If the other user wants to reply, they must run write as well.

When you are done, type an end-of-file or interrupt character. The

other user will see the message EOF indicating that the conversation is

over.

You can prevent people (other than the super-user) from writing to you

with the mesg(1) command. Some commands, for example nroff(1) and

pr(1), may disallow writing automatically, so that your output isn’t

overwritten.

If the user you want to write to is logged in on more than one termi-

nal, you can specify which terminal to write to by specifying the ter-

minal name as the second operand to the write command. Alternatively,

you can let write select one of the terminals - it will pick the one

with the shortest idle time. This is so that if the user is logged in

at work and also dialed up from home, the message will go to the right

place.

The traditional protocol for writing to someone is that the string

‘-o’, either at the end of a line or on a line by itself, means that

it’s the other person’s turn to talk. The string ‘oo’ means that the

person believes the conversation to be over.

SEE ALSO

mesg(1), talk(1), who(1)

write username 给某个用户发消息

用命令 wall 给所有用户发消息。相当于write all

wall -- send a message to everybody’s terminal

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