sbase/nl.1
Hiltjo Posthuma f769c2402f fix mandoc warnings
- sort references in SEE ALSO section to section number, name.
- cols.1: proper order of sections.
- wrap lines to max 79 column length.
2015-01-31 14:43:27 +01:00

47 lines
790 B
Groff

.Dd December 4, 2014
.Dt NL 1
.Os
.Sh NAME
.Nm nl
.Nd line numbering filter
.Sh SYNOPSIS
.Nm
.Op Fl b Ar type
.Op Fl i Ar incr
.Op Fl s Ar sep
.Op Ar file
.Sh DESCRIPTION
.Nm
reads lines from the named
.Ar file
and writes them to stdout with non-empty lines numbered. If no
.Ar file
is given
.Nm
reads from stdin.
.Sh OPTIONS
.Bl -tag -width Ds
.It Fl b Ar type
Defines which lines will be numbered:
.Bl -tag -width pstringXX
.It a
All lines.
.It n
No lines.
.It t
Only non-empty lines (default).
.It p Ns Ar expr
Only lines which match
.Ar expr ,
a regular expression as defined in
.Xr regex 7
.El
.It Fl i Ar incr
Defines the increment between numbered lines.
.It Fl s Ar sep
Defines the string used to separate line numbers and lines. By default this is
a tab.
.El
.Sh SEE ALSO
.Xr pr 1