write
send a message to another user
see also :
mesg - wall - who
Synopsis
write user
[tty]
add an example, a script, a trick and tips
examples
source
defaults write com.apple.desktopservices
DSDontWriteNetworkStores true
source
all: write
all: write read
write: write.s
as write.s -o write.o
objdump -d ./write.o > write.dump
rm -f ./write.o ./write.dump
./write.bin ./write.enc.bin
rm -f ./read.o ./read.dump ./read.bin ./read.enc.bin
description
The write utility 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
message 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
terminal. 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.
If the user you
want to write to is logged in on more than one terminal, you
can specify which terminal to write to by specifying the
terminal 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 is the other person’s
turn to talk. The string ’oo’ means that the
person believes the conversation to be over.
bugs
The sender’s LC_CTYPE
setting is used to determine which characters are safe to
write to a terminal, not the receiver’s (which
write has no way of knowing).
The write
utility does not recognize multibyte characters.
BSD
July 17, 2004 BSD
history
A write command appeared
in Version 1 AT&T UNIX.
see also
mesg , talk, wall ,
who