seq − print sequences of numbers
seq [ -w ] [ -fformat ] [ first [ incr ] ] last
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(3)-style format print for printing each (floating point) number. The default is |
||
-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. |
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.
/src/cmd/seq.c
Option -w always surveys every value in advance. Thus seq -w 1000000000 is a painful way to get an ‘infinite’ sequence.