NAME

seq − print sequences of numbers

SYNOPSIS

­seq [ ­-w ] [ -fformat ] [ ­first [ ­incr ] ] ­last

DESCRIPTION

­Seq prints a sequence of numbers, one per line, from ­first (default 1) to as near ­last as possible, in increments of ­incr (default 1).  The loop is:

  for(val = min; val <= max; val += incr) print val;

The numbers are interpreted as floating point.

Normally integer values are printed as decimal integers.  The options are

-fformat Use the print(2)-style ­format print for printing each (floating point) number.  The default is %g. 

­-w Equalize the widths of all numbers by padding with leading zeros as necessary.  Not effective with option -f, nor with numbers in exponential notation. 

EXAMPLES

seq 0 .05 .1
Print 0 0.05 0.1 (on separate lines). 

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

SOURCE

­/sys/src/cmd/seq.c

BUGS

Option ­-w always surveys every value in advance.  Thus seq -w 1000000000 is a painful way to get an ‘infinite’ sequence. 

Plan 9  —  September 17, 2003