write.1

操作系统设计与实现源码

.TH WRITE 1
.SH NAME
write \- send a message to a logged-in user
.SH SYNOPSIS
\fBwrite\fR [\fB\-cv\fR] \fIuser\fR [\fItty\fR]\fR
.br
.de FL
.TP
\\fB\\$1\\fR
\\$2
..
.de EX
.TP 20
\\fB\\$1\\fR
# \\$2
..
.SH OPTIONS
.FL "\-c" "Use cbreak mode"
.FL "\-v" "Verbose mode"
.SH EXAMPLES
.EX "write ast" "Send a message to ast"
.EX "write ast tty00" "Send a message to ast on tty00"
.SH DESCRIPTION
.PP
\fIWrite\fR lets a user send messages to another logged-in user.  
Lines typed by the user appear on the other user's screen a line at a time 
(a character at a time in the case of cbreak mode).  
The file \fI/usr/adm/wtmp\fR is searched to determine which tty to send to. 
If the user is logged onto more than one terminal, the \fItty\fR argument
selects the terminal.  Type CTRL- D to terminate the command.
Use ! as a shell escape.
.SH "SEE ALSO"
.BR mail (1).