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
-
Use a
printf(3)
style
format
to print each number. Only the
E,
e,
f,
G,
g,
and
%
conversion characters are valid, along with any optional
flags and an optional numeric mimimum 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
-
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.
- -t string
-
Use
string
to terminate sequence of numbers.
The
string
can contain character escape sequences in backslash notation as
defined in
ANSI X3.159-1989 (``ANSI C89'') .
This option is useful when the default separator
does not contain a
\n.
- -w
-
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.
The
seq
utility exits 0 on success and non-zero if an error occurs.
EXAMPLES
-
# seq 1 3
1
2
3
# seq 3 1
3
2
1
# seq -w 0 .05 .1
0.00
0.05
0.10
SEE ALSO
jot(1),
printf(1),
printf(3)
HISTORY
The
seq
command first appeared in
Plan 9 from Bell Labs.
A
seq
command appeared in
NetBSD3.0.
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 the
Plan 9 from Bell Labs
or
GNU
versions of
.