TABS(1) BSD General Commands Manual TABS(1)
tabs -- set terminal tabs
tabs [-n|-a|-a2|-c|-c2|-c3|-f|-p|-s|-u] [+m[n]] [-T type]
tabs [-T type] [+[n]] n1[,n2,...]
The tabs utility displays a series of characters that first clears the hardware terminal tab
settings and then initializes the tab stops at the specified positions and optionally
adjusts the margin.
The phrase "tab-stop position N" means that, from the start of a line of output, tabbing to
position N shall cause the next character output to be in the (N+1)th column on that line.
The following options are supported:
-n Specifies repetitive tab stops separated by a uniform number of columns, n,
where n is a single digit decimal number. The default usage of tabs with no
arguments is equivalent to tabs -8. When -0 is used, the tab stops are cleared
and no new ones set.
-a Assembler, applicable to some mainframes. Equivalent to tabs 1,10,16,36,72 .
-a2 Assembler, applicable to some mainframes. Equivalent to tabs 1,10,16,40,72
-c COBOL, normal format. Equivalent to tabs 1,8,12,16,20,55
-c2 COBOL, compact format (columns 1 to 6 omitted). Equivalent to tabs 1,6,10,14,49
-c3 COBOL, compact format (columns 1 to 6 omitted), with more tabs than -c2. Equiv-
alent to tabs 1,6,10,14,18,22,26,30,34,38,42,46,50,54,58,62,67
-f FORTRAN. Equivalent to tabs 1,7,11,15,19,23
-p PL/1. Equivalent to tabs 1,5,9,13,17,21,25,29,33,37,41,45,49,53,57,61
-s SNOBOL. Equivalent to tabs 1,10,55
-T type Indicates the type of terminal.
-u Assembler, applicable to some mainframes. Equivalent to tabs 1,12,20,44
The tabs utility exits 0 on success, and >0 if an error occurs.
The COLUMNS and TERM environment variables affect the execution of tabs as described in
The -T option overrides TERM. If neither TERM nor the -T option are present, tabs will
expand(1), stty(1), tput(1), unexpand(1), termcap(5)
The tabs utility conforms to IEEE Std 1003.1 (``POSIX.1'').
A tabs utility first appeared in PWB UNIX. This implementation was introduced in
Roy Marples <roy@NetBSD.org>
The current termcap(5) database does not define the set left soft margin 'ML' capability for
BSD December 9, 2008 BSD