Annotation of src/usr.bin/seq/seq.1, Revision 1.4
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1.3 millert 30: .Dd $Mdocdate: February 27 2022 $
1.1 millert 31: .Dt SEQ 1
32: .Os
33: .Sh NAME
34: .Nm seq
35: .Nd print sequences of numbers
36: .Sh SYNOPSIS
37: .Nm
38: .Op Fl w
39: .Op Fl f Ar format
40: .Op Fl s Ar string
41: .Op Ar first Op Ar incr
42: .Ar last
43: .Sh DESCRIPTION
44: The
45: .Nm
1.2 jmc 46: utility prints a sequence of numbers, one per line by default,
1.1 millert 47: from
48: .Ar first
1.2 jmc 49: .Pq default 1
50: to as near
1.1 millert 51: .Ar last
52: as possible, in increments of
53: .Ar incr
54: .Pq default 1 .
55: When
56: .Ar first
57: is larger than
58: .Ar last ,
59: the default
60: .Ar incr
61: is -1.
62: .Pp
63: All numbers are interpreted as floating point.
64: .Pp
65: Normally, integer values are printed as decimal integers.
66: .Pp
67: The
68: .Nm
69: utility accepts the following options:
70: .Bl -tag -width Ar
71: .It Fl f Ar format , Fl -format Ar format
72: Use a
73: .Xr printf 3
74: style
75: .Ar format
76: to print each number.
77: Only the
78: .Cm A ,
79: .Cm a ,
80: .Cm E ,
81: .Cm e ,
82: .Cm F ,
83: .Cm f ,
84: .Cm G ,
85: .Cm g ,
86: and
87: .Cm %
88: conversion characters are valid, along with any optional
89: flags and an optional numeric minimum field width or precision.
90: The
91: .Ar format
92: can contain character escape sequences in backslash notation as
93: defined in
94: .St -ansiC .
95: The default is
96: .Cm %g .
97: .It Fl s Ar string , Fl -separator Ar string
98: Use
99: .Ar string
100: to separate numbers.
101: The
102: .Ar string
103: can contain character escape sequences in backslash notation as
104: defined in
105: .St -ansiC .
106: The default is
107: .Cm \en .
108: .It Fl w , Fl -fixed-width
109: Equalize the widths of all numbers by padding with zeros as necessary.
110: This option has no effect with the
111: .Fl f
112: option.
113: If any sequence numbers will be printed in exponential notation,
114: the default conversion is changed to
115: .Cm %e .
116: .It Fl -help
117: Display the program usage and exit.
118: .It Fl -version
119: Display the verion number and exit.
120: .El
121: .Sh EXIT STATUS
122: .Ex -std
123: .Sh EXAMPLES
124: Generate a sequence from 1 to 3 (inclusive) with a default increment of 1:
125: .Bd -literal -offset indent
1.3 millert 126: $ seq 1 3
1.1 millert 127: 1
128: 2
129: 3
130: .Ed
131: .Pp
132: Generate a sequence from 3 to 1 (inclusive) with a default increment of -1:
133: .Bd -literal -offset indent
1.3 millert 134: $ seq 3 1
1.1 millert 135: 3
136: 2
137: 1
138: .Ed
139: .Pp
1.2 jmc 140: Generate a sequence from 0 to 0.1 (inclusive) with an increment of 0.05
141: and padding with leading zeroes:
1.1 millert 142: .Bd -literal -offset indent
1.3 millert 143: $ seq -w 0 .05 .1
1.1 millert 144: 0.00
145: 0.05
146: 0.10
147: .Ed
148: .Pp
149: Generate a sequence from 1 to 3 (inclusive) with a default increment of 1,
150: and a custom separator string:
151: .Bd -literal -offset indent
1.3 millert 152: $ seq -s "," 1 3
153: 1,2,3
1.1 millert 154: .Ed
155: .Pp
156: Generate a sequence from 1 to 2 (inclusive) with an increment of 0.2 and
157: print the results with two digits after the decimal point (using a
158: .Xr printf 3
159: style format):
160: .Bd -literal -offset indent
1.3 millert 161: $ seq -f %.2f 1 0.2 2
1.1 millert 162: 1.00
163: 1.20
164: 1.40
165: 1.60
166: 1.80
167: 2.00
168: .Ed
169: .Sh SEE ALSO
170: .Xr jot 1 ,
171: .Xr printf 1 ,
172: .Xr printf 3
173: .Sh HISTORY
174: A
175: .Nm
176: command appeared in
1.4 ! millert 177: Version\~8
! 178: .At .
1.1 millert 179: This version of
180: .Nm
181: appeared in
182: .Nx 3.0
183: and was ported to
184: .Ox 7.1 .
185: It was based on the command of the same name in
186: Plan 9 from Bell Labs and the GNU core utilities.
187: The GNU
188: .Nm
189: command first appeared in the 1.13 shell utilities release.
190: .Sh BUGS
191: The
192: .Fl w
193: option does not handle the transition from pure floating point
194: to exponent representation very well.
195: The
196: .Nm
197: utility is not bug for bug compatible with other implementations.
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