Flags

-l (letter el) crcchk (if an output file was specified) and crc calculate and show long (32-bit) CRC values. The default is to calculate and show 16-bit CRC values.

-s Descend subdirectories searching for matching files (crc only).

`-l`	(letter el) crcchk (if an output file was specified) and crc calculate and show long (32-bit) CRC values. The default is to calculate and show 16-bit CRC values.
`-s`	Descend subdirectories searching for matching files (crc only).