Manual page for TABS(1V)
tabs - set tab stops on a terminal
SYNOPSIS
/usr/5bin/tabs
[
tabspec
] [
-Ttype
] [
+mn
]
AVAILABILITY
This command is available with the
System V
software installation option. Refer to
[a manual with the abbreviation INSTALL]
for information on how to install optional software.
DESCRIPTION
tabs
can be used to specify
TAB
stops on terminals that support
remotely-settable hardware
TAB
characters.
TAB
stops are set according to the
tabspec
option, as described below, and previous settings are erased.
Four types of tab specification are accepted for
tabspec.
They are:
- -code
-
Set the
TAB
stops according to the canned
TAB
setting specified by
code,
as given by
fspec.5
- -n
-
Set the
TAB
stops at intervals of
n
columns, that is, at
1+n,
1+2*n,
and so on, as per the
-n
specification as given by
fspec.5
- n1,n2,...
-
Set the
TAB
stops at positions
n1,
n2,
and so on, as per the
n1,n2,...
specification as given by
fspec.5
- --file
-
Read the first line of the file specified by
file,
searching for a format specification as given by
fspec.5
If this line contains a format specification, set the
TAB
stops accordingly,
otherwise set them to every 8 columns.
This type of specification may be used to make sure that a file containing a
TAB
specification is displayed with correct
TAB
settings. For example, it can be used with the
pr.1v
command:
-
tabs --file; pr file
If no
tabspec
is given, the default value
is
-8,
the standard default
TAB
setting. The
lowest column number is 1. Note: for
tabs,
column 1 always refers to the leftmost column on a
terminal, even one whose column markers begin at 0,
(such as the
DASI
300,
DASI
300s,
and
DASI
450).
TAB
and margin setting is performed by echoing to the proper
sequences to the standard output.
OPTIONS
- -Ttype
-
tabs
usually needs to know the type of terminal in
order to set
TAB
characters, and always needs to know
to set margins.
type
is a name listed in
term.5
If no
-T
flag is supplied,
tabs
uses the value of the environment variable
TERM.
If
TERM
is not defined in the environment (see
environ.5v
tabs
tries a default sequence that will work for many terminals.
- +mn
-
The margin argument may be used for some terminals.
It moves all
TAB
stops over
n
columns by making column
n+1
the left margin. If
+m
is given without a value of
n,
the value assumed is 10. For
a TermiNet, the first value in the tab list should
be 1, or the margin will move even further to the
right. The normal (leftmost) margin on most terminals
is obtained by
+m0.
The margin for most terminals is reset only when the
+m
flag is given explicitly.
SEE ALSO
pr.1v
tput.1v
environ.5v
fspec.5
term.5
terminfo.5v
BUGS
There is no consistency between different terminals regarding
ways of clearing tabs and setting the left margin.
tabs
clears only 20 tabs (on terminals requiring a long
sequence), but is willing to set 64.
Created by unroff & hp-tools.
© somebody (See intro for details). All Rights Reserved.
Last modified 11/5/97
