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CHECKSUM

//md5
md5 -r 

//sha256
shasum -a 256

//md5 of folder contents
cd /path/to/folder/
find /path/to/folder/ | xargs -I{} md5 {}

//md5 of folder contents to text file
find /path/to/folder/ | xargs -I{} md5 {} > md5.txt
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BAGIT

bagit.py /path/to/folder/
bagit.py --validate /path/to/folder/
bagit.py --sha256 /path/to/folder/

bagit.py --sha256 --contact-name ‘First Last’ --source-organization ‘Blank University’ /path/to/folder/

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CLAMAV

freshclam

clamscan /path/to/folder/

cd /path/to/folder/
clamscan /path/to/folder/ > clamscan.txt

cd /Volumes/ExFat/files
clamscan /Volumes/ExFat/files > clamscan.txt