Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
SEQ(1)			    General Commands Manual			SEQ(1)

NAME
       seq -- print sequences of numbers

SYNOPSIS
       seq [-w]	[-f format] [-s	string]	[-t string] [first [incr]] last

DESCRIPTION
       The  seq	 utility prints	a sequence of numbers, one per line (default),
       from first (default 1), to near last as possible, in increments of incr
       (default	1).  When first	is larger than last, the default incr is -1.

       All numbers are interpreted as floating point.

       Normally	integer	values are printed as decimal integers.

       The seq utility accepts the following options:

       -f format, --format format
		     Use a printf(3) style format to print each	number.	  Only
		     the  A,  a, E, e, F, f, G,	g, and % conversion characters
		     are valid,	along with any optional	flags and an  optional
		     numeric minimum field width or precision.	The format can
		     contain  character	escape sequences in backslash notation
		     as	defined	in ANSI	X3.159-1989 ("ANSI C89").  The default
		     is	%g.

       -s string, --separator string
		     Use string	to separate numbers.  The string  can  contain
		     character	escape	sequences in backslash notation	as de-
		     fined in ANSI X3.159-1989 ("ANSI C89").  The  default  is
		     \n.

       -t string, --terminator string
		     Use  string to terminate sequence of numbers.  The	string
		     can contain character escape sequences in backslash nota-
		     tion as defined in	ANSI X3.159-1989 ("ANSI	 C89").	  This
		     option is useful when the default separator does not con-
		     tain a \n.

       -w, --fixed-width
		     Equalize  the widths of all numbers by padding with zeros
		     as	necessary.  This option	has no effect with the -f  op-
		     tion.   If	 any sequence numbers will be printed in expo-
		     nential notation, the default conversion  is  changed  to
		     %e.

EXIT STATUS
       The seq utility exits 0 on success, and >0 if an	error occurs.

EXAMPLES
       Generate	 a sequence from 1 to 3	(included) with	a default increment of
       1:

	     # seq 1 3
	     1
	     2
	     3

       Generate	a sequence from	3 to 1 (included) with a default increment  of
       -1:

	     # seq 3 1
	     3
	     2
	     1

       Generate	 a sequence from 0 to 0.1 (included) with an increment of 0.05
       and padding with	leading	zeroes.

	     # seq -w 0	.05 .1
	     0.00
	     0.05
	     0.10

       Generate	a sequence from	1 to 3 (included) with a default increment  of
       1, a custom separator string and	a custom terminator:

	     # seq -s "-->" -t "[end of	list]\n" 1 3
	     1-->2-->3-->[end of list]

       Generate	a sequence from	1 to 2 (included) with an increment of 0.2 and
       print  the  results  with  two  digits after the	decimal	point (using a
       printf(3) style format):

	     # seq -f %.2f 1 0.2 2
	     1.00
	     1.20
	     1.40
	     1.60
	     1.80
	     2.00

SEE ALSO
       jot(1), printf(1), printf(3)

HISTORY
       The seq command first appeared in Version 8 AT&T	UNIX.  A  seq  command
       appeared	 in  NetBSD  3.0, and was ported to FreeBSD 9.0.  This command
       was based on the	command	of the same name in Plan 9 from	Bell Labs  and
       the GNU core utilities.	The GNU	seq command first appeared in the 1.13
       shell utilities release.

BUGS
       The  -w	option does not	handle the transition from pure	floating point
       to exponent representation very well.  The seq command is not  bug  for
       bug compatible with other implementations.

FreeBSD	14.3			 June 20, 2020				SEQ(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=seq&manpath=FreeBSD+14.3-RELEASE+and+Ports>

home | help