sbase/cols.1
Michael Forney 22921a859f Fix various lint warnings in manuals
Fix "new sentence, new line" warnings throughout so that formatters
can produce correct spacing between sentences.

join.1
  Remove unnecessary Ns macros. These are not necessary for delimeters,
  which get special treatment.

xinstall.1
  Fix date in manual. The contents were last modified on 2016-12-03,
  so use that instead of the invalid date.

grep.1
  Fix escape sequence for `\<` and `\>`.

ed.1
  Remove spurious `\\n` escape for the null-command.
2020-03-01 15:32:11 -08:00

57 lines
1.0 KiB
Groff

.Dd 2015-10-08
.Dt COLS 1
.Os sbase
.Sh NAME
.Nm cols
.Nd columnize output
.Sh SYNOPSIS
.Nm
.Op Fl c Ar num
.Op Ar file ...
.Sh DESCRIPTION
.Nm
reads each
.Ar file
in sequence and writes them to stdout, in as many vertical
columns as will fit in
.Ar num
character columns.
If no
.Ar file
is given,
.Nm
reads from stdin.
.Pp
By default
.Nm cols
tries to figure out the width of the output device.
If that fails, it defaults to 65 chars.
.Sh OPTIONS
.Bl -tag -width Ds
.It Fl c Ar num
Set maximum number of character columns to
.Ar num ,
unless input lines exceed this limit.
.El
.Sh ENVIRONMENT
.Bl -tag -width Ds
.It COLUMNS
The width of the output device.
.El
.Sh HISTORY
.Nm
is similar to
.Xr mc 1
in Plan 9. It was renamed to
.Nm
to avoid the name collision with the popular file manager
Midnight Commander.
.Sh CAVEATS
This implementation of
.Nm
assumes that each UTF-8 code point occupies one character cell,
and thus mishandles TAB characters (among others).
.Pp
.Nm
currently mangles files which contain embedded NULs.