md5sum

Calculate MD5 cryptographic checksums. More information: https://www.gnu.org/software/coreutils/md5sum.

md5sum path/to/file1 path/to/file2 ...

md5sum path/to/file1 path/to/file2 ... > path/to/file.md5

command | md5sum

md5sum --check path/to/file.md5

md5sum --check --quiet path/to/file.md5

md5sum --ignore-missing --check --quiet path/to/file.md5