How to get the MD5/SHA1 Checksum of a file

This is pretty straight forward. As mentioned in an earlier post a MD5 and SHA1 checksum is used to verify that a file was not changed since the author updated it on his/her website.

This is how it’s done on a mac.

1. Open a terminal window

2. Type in the following

For SHA1

 openssl sha1 filename.ext 

For MD5

 openssl md5 filename.ext