One Day One Command
===================

md5sum — Compute and Check MD5 Check sums.

Summary:

`md5sum’ computes a 128-bit checksum/fingerprint/message-digest for
each specified file. `md5sum’ can also determine whether a file &
checksum are consistent.

Example:

$ md5sum file — Compute and print the MD5 checksum of that file.

$ md5sum -c input.txt — Read checksum and filename from the file and

validate checksums.

$ md5sum -w -c input.txt — Same as above and warn if the checksums

format is wrong in the file.

$ md5sum –status -c input.txt — Indicate the status in exit status

code.

Read: man md5sum