myDSL Extensions (deprecated) :: Please add to the myDSL FAQ

How to check an MD5 checksum?

1) Download the original file, ie: extension.dsl
2) Download the checksum file, ie: extension.dsl.md5.txt
3) Open up an xterminal window and type:

md5sum -c extension.dsl.md5.txt

if you get an OK message, then your download is good. If you get a failed message, your download does not macth the checksum and one or both of the files have been corrupted or one of the files are out of date (assumes that a new version of the file has been published by the author).

original here.