<para>
It is also possible to substitute the output of a Unix command in an
initialization file. This is accomplished by enclosing the command in
-backquotes (``). For example,
+backticks (``). For example,
<screen>
my_hdr X-Operating-System: `uname -a`
quote is used to specify a literal string (one that is not
interpreted for shell variables or quoting with a backslash [see
next paragraph]), while double quotes indicate a string which
-should be evaluated. For example, backquotes are evaluated inside of
+should be evaluated. For example, backticks are evaluated inside of
double quotes, but not single quotes.
.PP
\fB\(rs\fP quotes the next character, just as in shells such as bash and zsh.
.PP
It is also possible to substitute the output of a Unix command in an
initialization file. This is accomplished by enclosing the command
-in backquotes (\fB`\fP\fIcommand\fP\fB`\fP).
+in backticks (\fB`\fP\fIcommand\fP\fB`\fP).
.PP
UNIX environment variables can be accessed like the way it is done in shells
like sh and bash: Prepend the name of the variable by a dollar