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.\" Sccsid @(#)tabs.1	1.5 (gritter) 5/19/03
.\" Parts taken from tabs(1), Unix 32V:
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.TH TABS 1 "5/19/03" "Heirloom Toolchest" "User Commands"
.SH NAME
tabs \- set terminal tabs
.SH SYNOPSIS
\fBtabs\fR
[\fItabspec\fR]
[\fB+m\fIn\fR] [\fB\-T\fItype\fR]
.SH DESCRIPTION
.I Tabs
sets the tabs on a variety of terminals,
according to
.IR tabspec ;
if no such argument is present,
the default is
.B \-8
(set tabulator stops at every eight positions).
.PP
The
.I tabspec
argument can be one of the following:
.TP
.BI \- n
Set a tab stop at every
.I n
positions. If
.I n
is 0,
all tab stops are cleared and no new ones are set.
.TP
.IB n1 , n2 , \ .\ .\ .
Set a tab stop at
.IR n1 ,
.IR n2 ,
and any following numbers.
A number prefixed by a plus sign
is interpreted as an increment to the previous position.
.TP
.B \-a
1,10,16,36,72;
IBM System/370 Assembler, first format.
.TP
.B \-a2
1,10,16,40,72;
IBM System/370 Assembler, second format.
.TP
.B \-c
1,8,12,16,20,55;
COBOL, normal format.
.TP
.B \-c2
1,6,10,14,49;
COBOL compact format (columns 1\^\(en\^6 omitted).
.TP
.B \-c3
1,6,10,14,18,22,26,30,34,38,42,46,50,54,58,62,67;
COBOL compact format with additional tabs.
.TP
.B \-f
1,7,11,15,19,23;
FORTRAN format.
.TP
.B \-p
1,5,9,13,17,21,25,29,33,37,41,45,49,53,57,61;
PL/1 format.
.TP
.B \-s
1,10,55;
SNOBOL format.
.TP
.B \-u
1,12,20,44;
UNIVAC 1100 Assembler format.
.TP
.BI \-\- file
Read the tabulator specifications from the first line of
.I file
(if
.I file
is omitted, read from standard input).
See
.IR fspec (5)
for the format of the tabulator specification line.
.PP
Other arguments are:
.TP
.BI \-T type
Overrides the default terminal type.
Various of the terminal names given in
.IR term (7)
are recognized.
.TP
.TP
.BI +m n
Sets the left margin to
.I n
or, if
.I n
is omitted, to 10
(if supported by the terminal).
The leftmost margin can be set with
.BR +m0 .
The left margin is not set
unless this argument is present.
.PP
All operation is performed on standard output.
.SH "ENVIRONMENT VARIABLES"
.TP
.B TERM
Specifies the default terminal type.
.SH SEE ALSO
stty(1),
fspec(5),
term(7)