Environment variables are available within chat scripts, if the \fI\-E\fR
option was specified in the command line. The metacharacter \fI$\fR is used
to introduce the name of the environment variable to substitute. If the
Environment variables are available within chat scripts, if the \fI\-E\fR
option was specified in the command line. The metacharacter \fI$\fR is used
to introduce the name of the environment variable to substitute. If the