# md5 > Calculate MD5 cryptographic checksums. - Print MD5 checksum for a file: `md5 {{filename}}` - Print MD5 checksum for each file in a list or directory: `md5 {{filename1}} {{filename2}}` `md5 {{directory/\*}}` - Output only the md5 checksum (no filename): `md5 -q {{filename}}` - Print a checksum of the given string: `md5 -s {{string}}`