seq用法

NAME

seq - print a sequence of numbers

SYNOPSIS

seq [OPTION]… LAST

seq [OPTION]… FIRST LAST

seq [OPTION]… FIRST INCREMENT LAST

DESCRIPTION

Print numbers from FIRST to LAST, in steps of INCREMENT.

-f, --format=FORMAT
use printf style floating-point FORMAT

-s, --separator=STRING
use STRING to separate numbers (default: \n)

-w, --equal-width
equalize width by padding with leading zeroes

--help display this help and exit

--version
output version information and exit

If FIRST or INCREMENT is omitted, it defaults to 1. That is, an omitted INCREMENT defaults to 1 even when LAST is smaller than FIRST. FIRST, INCREMENT, and LAST are interpreted as floating point values. INCREMENT is usually positive if FIRST is smaller than LAST, and INCREMENT is usually negative if FIRST is greater than LAST. FORMAT must be suitable for printing one argument of type `double’; it defaults to %.PRECf if FIRST, INCREMENT, and LAST are all fixed point decimal numbers with maximum precision PREC, and to %g otherwise.