to \fIstderr\fR.
.TP
.B \-E
-Enables environment variable substituion within chat scripts using the
+Enables environment variable substitution within chat scripts using the
standard \fI$xxx\fR syntax.
.TP
.B \-v
error messages from being sent to the SYSLOG.
.TP
.B \-T \fI<phone number>
-Pass in an arbitary string, usually a phone number, that will be
+Pass in an arbitrary string, usually a phone number, that will be
substituted for the \\T substitution metacharacter in a send string.
.TP
.B \-U \fI<phone number 2>
.LP
\fBSAY\fR strings must be enclosed in single or double quotes. If
carriage return and line feed are needed in the string to be output,
-you must explicitely add them to your string.
+you must explicitly add them to your string.
.LP
The SAY strings could be used to give progress messages in sections of
the script where you want to have 'ECHO OFF' but still let the user
Environment variables are available within chat scripts, if the \fI\-E\fR
option was specified in the command line. The metacharacter \fI$\fR is used
to introduce the name of the environment variable to substitute. If the
-substition fails, because the requested environment variable is not set,
+substitution fails, because the requested environment variable is not set,
\fInothing\fR is replaced for the variable.
.SH TERMINATION CODES
The \fIchat\fR program will terminate with the following completion