mkfs.ext4(8) on Linux
The text ecc526a18d9a, as Debian 11 (Bullseye) shipped it.
create an ext2/ext3/ext4 filesystem
Flags it lists
-
-C -
-D -
-F -
-O -
-S -
-V -
-c -
-j -
-n -
-q -
-v