.TH ECHO 1 
.SH NAME
echo, echon \- print arguments
.SH SYNOPSIS
.B echo
[
.I arg ...
]
.PP
.B echon
[
.I arg ...
]
.SH DESCRIPTION
.I Echo
writes its arguments separated by blanks and terminated by
a newline on the standard output.
.I Echon
operates similarly, but suppresses the newline.
.SH SOURCE
.B /sys/src/cmd/echo.c
.br
.B /sys/src/cmd/echon.c
.SH DIAGNOSTICS
If
.I echo
draws an error while writing to standard output, the exit status is
.LR "write error" .
Otherwise the exit status is empty.