1IF(1)                                                                    IF(1)
2
3
4
5NNAAMMEE
6       if - the roff conditional instruction
7
8DDEESSCCRRIIPPTTIIOONN
9       One-line true condition.
10       Two-line true condition without continuation and macros.
11       Two-line true condition with continuation and macros.
12       Outer true condition.
13       Inner one-line true condition.
14       Inner two-line true condition without continuation and macros.
15       Back to the outer true condition.
16
17
18
19