Here are some ways to calculate an MD5 and SHA1 sum of a string.

In Bash

echo -e "joh316\c" | md5sum
echo -e "joh316\c" | sha1sum

The switch -e enables the interpretation of escape sequences and \c (‘End of Text’) suppresses any further output.

In MySQL

SELECT md5('joh316');
SELECT sha1('joh316');

In PHP5

php5 -r "echo md5('joh316');"
php5 -r "echo sha1('joh316');"