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tabs(1)				 User Commands			       tabs(1)

NAME
       tabs - set tabs on a terminal

SYNOPSIS
       tabs  [	-n  | --file [ [-code] | -a | -a2 | -c | -c2 | -c3 | -f	| -p |
       -s | -u]	]  [ +m	[n]] [-T type]

       tabs [-T	type] [	+ m [n]] n1 [ ,	n2 ,...]

DESCRIPTION
       tabs sets the tab stops on the user's terminal according	to a tab spec-
       ification,  after  clearing  any	previous settings. The user's terminal
       must have remotely settable hardware tabs.

OPTIONS
       The following options are supported. If a given flag occurs  more  than
       once, the last value given takes	effect:

       -T type
	     tabs  needs to know the type of terminal in order to set tabs and
	     margins. type is a	name listed in term(5).	 If no -T flag is sup-
	     plied,  tabs  uses	the value of the environment variable TERM. If
	     the value of TERM is NULL or TERM is not defined in the  environ-
	     ment  (see	 environ(5)), tabs uses	ansi+tabs as the terminal type
	     to	provide	a sequence that	will work for many terminals.

       +m[n] The margin	argument may be	used for some terminals. It causes all
	     tabs  to  be  moved  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 mar-
	     gin for most terminals is reset only when the +m  flag  is	 given
	     explicitly.

   Tab Specification
       Four  types  of tab specification are accepted.	They are described be-
       low: canned, repetitive (-n), arbitrary (n1,n2,...), and	file (-file).

       If no tab specification is given, the default value  is	-8,  that  is,
       UNIX  system  ``standard''  tabs.  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, for	example, the DASI 300,
       DASI 300s, and DASI 450.

   Canned -code
       Use one of the codes listed below to select a canned set	 of  tabs.  If
       more  than  one	code  is specified, the	last code option will be used.
       The legal codes and their meanings are as follows:

       -a    1,10,16,36,72 Assembler, IBM S/370, first format

       -a2   1,10,16,40,72

	     Assembler,	IBM S/370, second format

       -c    1,8,12,16,20,55

	     COBOL, normal format

       -c2   1,6,10,14,49

	     COBOL compact format (columns 1-6 omitted). Using this code,  the
	     first  typed  character  corresponds  to card column 7, one space
	     gets you to column	8, and a tab reaches column  12.  Files	 using
	     this  tab	setup should include a format specification as follows
	     (see fspec(4)):

		    <:t-c2 m6 s66 d:>

       -c3   1,6,10,14,18,22,26,30,34,38,42,46,50,54,58,62,67

	     COBOL compact format (columns 1-6 omitted), with more  tabs  than
	     -c2.  This	 is  the recommended format for	COBOL. The appropriate
	     format specification is (see fspec(4)):

		    <:t-c3 m6 s66 d:>

       -f    1,7,11,15,19,23

	     FORTRAN

       -p    1,5,9,13,17,21,25,29,33,37,41,45,49,53,57,61

	     PL/I

       -s    1,10,55

	     SNOBOL

       -u    1,12,20,44

	     UNIVAC 1100 Assembler

   Repetitive
       -n    A repetitive specification	requests tabs at columns  1+n,	1+2*n,
	     etc., where n is a	single-digit decimal number. Of	particular im-
	     portance is the value 8: this represents the UNIX system  ``stan-
	     dard''  tab  setting,  and	 is  the most likely tab setting to be
	     found at a	terminal. When -0 is used, the tab stops  are  cleared
	     and no new	ones are set.

   Arbitrary
       See OPERANDS.

   File
       -file If	 the name of a file is given, tabs reads the first line	of the
	     file, searching for a format specification	(see fspec(4)).	If  it
	     finds one there, it sets the tab stops according to it, otherwise
	     it	sets them as -8. This type of specification  may  be  used  to
	     make  sure	 that  a  tabbed file is printed with correct tab set-
	     tings, and	would be used with the pr command:

	     example% tabs - file; pr file

       Tab and margin setting is performed via the standard output.

OPERANDS
       The following operand is	supported:

	      n1[,n2,...]
		    The	arbitrary format consists of tab-stop values separated
		    by	commas or spaces. The tab-stop values must be positive
		    decimal integers in	ascending order. Up to 40 numbers  are
		    allowed.  If any number (except the	first one) is preceded
		    by a plus sign, it is taken	as an increment	to be added to
		    the	 previous  value.  Thus,  the  formats 1,10,20,30, and
		    1,10,+10,+10 are considered	identical.

EXAMPLES
       Example 1: Using	the tabs Command

       The following command is	an example using -code ( canned	specification)
       to  set tabs to the settings required by	the IBM	assembler:  columns 1,
       10, 16, 36, 72:

       example%	tabs -a

       The next	command	is an example of using -n (repetitive  specification),
       where  n	 is  8,	 causes	tabs to	be set every eighth position: 1+(1*8),
       1+(2*8),	... which evaluate to columns 9, 17, ...:

       example%	tabs -8

       This command uses n1,n2,... (arbitrary specification) to	 set  tabs  at
       columns 1, 8, and 36:

       example%	tabs 1,8,36

       The  last  command is an	example	of using -file (file specification) to
       indicate	that tabs should  be  set  according  to  the  first  line  of
       $HOME/fspec.list/att4425	 (see fspec(4)).

       example%	tabs -$HOME/fspec.list/att4425

ENVIRONMENT VARIABLES
       See  environ(5) for descriptions	of the following environment variables
       that affect the execution of tabs: LC_CTYPE, LC_MESSAGES, and NLSPATH.

       TERM  Determine the terminal type.  If this variable is unset or	 null,
	     and  if  the  -T option is	not specified, terminal	type ansi+tabs
	     will be used.

EXIT STATUS
       The following exit values are returned:

       0     Successful	completion.

       >0    An	error occurred.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE	TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       expand(1), newform(1), pr(1), stty(1), tput(1), fspec(4),  terminfo(4),
       attributes(5), environ(5), term(5)

NOTES
       There  is  no  consistency  among 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.

       The  tabspec  used with the tabs	command	is different from the one used
       with the	newform	command. For example, tabs -8 sets every eighth	 posi-
       tion; whereas newform -i-8 indicates that tabs are set every eighth po-
       sition.

SunOS 5.9			  1 Feb	1995			       tabs(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPERANDS | EXAMPLES | ENVIRONMENT VARIABLES | EXIT STATUS | ATTRIBUTES | SEE ALSO | NOTES

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