Check SHA256 checksums when you don't have the hash stored in a separate file but have it as a string copied from a website download location
Dependences to install:
sha256sum
Install instruction:
Copy file 'sha2chk' into /usr/bin folder
Usage Example in terminal:
sha2chk my_downloaded_file_i386.deb 88c8f3bd6a864f1c95cc04807701b4afd836e6200d165b72cff6b9c27fc6cb54