/usr/bin/seq

Usage: /usr/bin/seq [OPTION]... LAST
  or:  /usr/bin/seq [OPTION]... FIRST LAST
  or:  /usr/bin/seq [OPTION]... FIRST INCREMENT LAST
Print numbers from FIRST to LAST, in steps of INCREMENT.

Mandatory arguments to long options are mandatory for short options too.
  -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.
The sequence of numbers ends when the sum of the current number and
INCREMENT would become greater than LAST.
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.
INCREMENT must not be 0; none of FIRST, INCREMENT and LAST may be NaN.
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.

Report bugs to: <bug-coreutils@gnu.org>.
GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>
Full documentation <https://www.gnu.org/software/coreutils/seq>
or available locally via: info '(coreutils) seq invocation'