Linux Unix Command md5sum
md5sum – compute and check MD5 message digest
md5sum [OPTION] [FILE]…
md5sum [OPTION] –check [FILE]
Print or check MD5 (128-bit) checksums. With no FILE, or when FILE is -, read standard input.
read files in binary mode (default on DOS/Windows)
check MD5 sums against given list
read files in text mode (default)
The following two options are useful only when verifying checksums:
don’t output anything, status code shows success
warn about improperly formated checksum lines
display this help and exit
output version information and exit
The sums are computed as described in RFC 1321. When checking, the input should be a former output of this program. The default mode is to print a line with checksum, a character indicating type (`*’ for binary, ` ‘ for text), and name for each FILE.
The full documentation for md5sum is maintained as a Texinfo manual. If the info and md5sum programs are properly installed at your site, the command
should give you access to the complete manual.