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Command: seq | Section: 1 | Source: OpenBSD | File: seq.1
SEQ(1) FreeBSD General Commands Manual SEQ(1)
NAME
seq - print sequences of numbers
SYNOPSIS
seq [-w] [-f format] [-s string] [first [incr]] last
DESCRIPTION
The seq utility prints a sequence of numbers, one per line by default,
from first (default 1) to as 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 defined
in ANSI X3.159-1989 ("ANSI C89"). The default is \n.
-w, --fixed-width
Equalize the widths of all numbers by padding with zeros as
necessary. This option has no effect with the -f option.
If any sequence numbers will be printed in exponential
notation, the default conversion is changed to %e.
--help Display the program usage and exit.
--version Display the version number and exit.
EXIT STATUS
The seq utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
Generate a sequence from 1 to 3 (inclusive) with a default increment of
1:
$ seq 1 3
1
2
3
Generate a sequence from 3 to 1 (inclusive) with a default increment of
-1:
$ seq 3 1
3
2
1
Generate a sequence from 0 to 0.1 (inclusive) 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 (inclusive) with a default increment of
1, and a custom separator string:
$ seq -s "," 1 3
1,2,3
Generate a sequence from 1 to 2 (inclusive) 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
A seq command appeared in Version 8 AT&T UNIX. This version of seq
appeared in NetBSD 3.0 and was ported to OpenBSD 7.1.
BUGS
The -w option does not handle the transition from pure floating point to
exponent representation very well. The seq utility is not bug for bug
compatible with other implementations.
FreeBSD 14.1-RELEASE-p8 September 21, 2023 FreeBSD 14.1-RELEASE-p8