xattr

• Manages extended attributes associated with a file or directory
• The presence of extended attributes are typically noted by the @ symbol

drwx------@  2 john    staff    64B Nov  3 16:44 file.txt

-l

# list extended attributes
xattr -l file.txt

-d

# Remove attribute
xattr -d "com.apple.quarantine" file.txt
xattr -d "com.apple.provenance" file.txt

-c

# Remove att attributes
xattr -c file.txt