This Alfred 2 workflow check the checksum validity of a file with respect to sha1, md5 and sha256.
Thanks to alfred.py for ease the communication with Alfred.
Download and double-click ChecksumVerifier.alfredworkflow.
select in Finder the file to check then type checksum <digest> into alfred
or to calculate all the checksum for the selected file type checksum all
The script luncher.scpt is used in alfred to get the current selected file in Finder and then call the python script.
To manually get the digest (for example sha1) of a file use:
openssl dgst -sha1 filename