Calculate hash values for files.
h [-scrc{Method}] [files]
Supported methods: CRC32, CRC64, SHA1, SHA256, BLAKE2sp. Default method is CRC32.
7z h a.txt
calculates CRC32 for a.txt.
7z h -scrcsha256 a.iso
calculates SHA256 for a.iso.
7z h *
calculates CRC32 for all files in current folder and all subfolders.
7-Zip shows hash values for each file, the sum of hash values and the sum that includes all hash values of data and all hash values for filenames.
7-Zip represents hash values for CRC32 and CRC64 as integer numbers in hex.
7-Zip represents hash values For SHA1, SHA256 and BLAKE2sp as sequence of bytes in hex.
  -i (Include)
  -m (Method)
  -r (Recurse)
  -scrc (Set hash method)
  -si (use StdIn)
  -sns (Store NTFS alternate Streams)
  -ssw (Compress shared files)
  -x (Exclude)