DOKK / manpages / debian 10 / isomd5sum / checkisomd5.1.en
CHECKISOMD5(1) General Commands Manual CHECKISOMD5(1)

checkisomd5 — check an MD5 checksum implanted by implantisomd5

checkisomd5 [--md5sumonly] [--verbose] [--gauge] [isofilename | blockdevice ]

This manual page documents briefly the checkisomd5 command. checkisomd5 is a program that checks an embedded MD5 checksum in a ISO9660 image (.iso), or block device. The checksum is embedded by the corresponding implantisomd5 command.

The check can be aborted by pressing Esc key.

Program returns exit status 0 if the checksum is correct, 1 if the checksum is incorrect or non-existent, or 2 if the check was aborted.

Do not check the target. Instead, output human-readable information about the target's checksums.
Display human-readable progress as the target is checked. Without this option, nothing is outputted except errors.
Display a series of numbers from 0 to 100, corresponding to check progress. This output can be piped to dialog --gauge for a user-friendly progress bar.

implantisomd5 (1).