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$FreeBSD: stable/9/usr.bin/seq/seq.1 204103 2010-02-19 23:54:12Z delphij $
.Dd February 19, 2010 .Dt SEQ 1 .Os .Sh NAME .Nm seq .Nd print sequences of numbers .Sh SYNOPSIS .Nm .Op Fl w .Op Fl f Ar format .Op Fl s Ar string .Op Fl t Ar string .Op Ar first Op Ar incr .Ar last .Sh DESCRIPTION The .Nm utility prints a sequence of numbers, one per line
q default , from .Ar first
q default 1 , to near .Ar last as possible, in increments of .Ar incr
q default 1 . When .Ar first is larger than .Ar last the default .Ar incr is -1.
p All numbers are interpreted as floating point.
p Normally integer values are printed as decimal integers.
p The .Nm utility accepts the following options: l -tag -width Ar t Fl f Ar format Use a .Xr printf 3 style .Ar format to print each number. Only the .Cm E , .Cm e , .Cm f , .Cm G , .Cm g , and .Cm % conversion characters are valid, along with any optional flags and an optional numeric minimum field width or precision. The .Ar format can contain character escape sequences in backslash notation as defined in .St -ansiC . The default is .Cm %g . t Fl s Ar string Use .Ar string to separate numbers. The .Ar string can contain character escape sequences in backslash notation as defined in .St -ansiC . The default is .Cm \en . t Fl t Ar string Use .Ar string to terminate sequence of numbers. The .Ar string can contain character escape sequences in backslash notation as defined in .St -ansiC . This option is useful when the default separator does not contain a .Cm \en . t Fl w Equalize the widths of all numbers by padding with zeros as necessary. This option has no effect with the .Fl f option. If any sequence numbers will be printed in exponential notation, the default conversion is changed to .Cm %e . .El
p The .Nm utility exits 0 on success and non-zero if an error occurs. .Sh EXAMPLES d -literal -offset indent # seq 1 3 1 2 3 # seq 3 1 3 2 1 # seq -w 0 .05 .1 0.00 0.05 0.10 .Ed .Sh SEE ALSO .Xr jot 1 , .Xr printf 1 , .Xr printf 3 .Sh HISTORY The .Nm command first appeared in .Tn "Plan 9 from Bell Labs" . A .Nm command appeared in .Nx 3.0 , and ported to .Fx 9.0 . This command was based on the command of the same name in .Tn "Plan 9 from Bell Labs" and the .Tn GNU core utilities. The .Tn GNU .Nm command first appeared in the 1.13 shell utilities release. .Sh BUGS The .Fl w option does not handle the transition from pure floating point to exponent representation very well. The .Nm command is not bug for bug compatible with the .Tn "Plan 9 from Bell Labs" or .Tn GNU versions of .Nm .