tldr/linux/md5sum.md

md5sum

Calculate MD5 cryptographic checksums

• Calculate the MD5 checksum for file(s) or files in a directory, one checksum per file

md5sum {{filename1}} md5sum {{filename1}} {{filename2}} md5sum {{directory/\*}}

• Read a file of MD5SUMs and verify all files have matching checksums

md5sum -c {{filename.md5}}