I've got a fragment of a manual file which looks like this:

.I krb5_key_file
Location of the key for this client's principal.
Note that the key file must be owned by root and mode 0400.
The default is
.I /etc/audit/audit.key

I would like to add an unformatted dot (.) at the end of this fragment.

  1. Adding a dot at the end of the last line like this

    .I /etc/audit/audit.key.

    doesn't work because the dot is being underlined.

  2. Adding an escaped dot in a new line

    .I /etc/audit/audit.key

    doesn't work as well because a space character is inserted between /etc/audit/audit.key and the dot: /etc/audit/audit.key ..

How can I solve this?


3 Answers 3


There are a number of 2-character macros that let you format their arguments in two different fonts, alternating between them. In your case, you'd use the .IR macro. R means Roman, the default font.

The default is 
.IR /etc/audit/audit.key .
  • This one seems to be much cleaner than the solution by Stephen. Aug 21, 2016 at 19:58

You can use the alternative method of setting italics/underline mode: \fI. Then \fP to return to previous font:

So you would have

  • 1
    FWIW, you can also use \fB for bold in the same way Aug 21, 2016 at 19:38

One solution is to do it like this:

The default is \fI/etc/audit/audit.key\fP.

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