How to Fix App “is damaged and can’t be opened. You should move it to the Trash” Error on Mac

fix_mac_app.sh

# Bypass MacOS Gatekeeper

#------------------------

#usage: xattr [-l] [-r] [-s] [-v] [-x] file [file ...]
#      xattr -p [-l] [-r] [-s] [-v] [-x] attr_name file [file ...]
#      xattr -w [-r] [-s] [-x] attr_name attr_value file [file ...]
#      xattr -d [-r] [-s] attr_name file [file ...]
#      xattr -c [-r] [-s] file [file ...]

#The first form lists the names of all xattrs on the given file(s).
#The second form (-p) prints the value of the xattr attr_name.
#The third form (-w) sets the value of the xattr attr_name to the string attr_value.
#The fourth form (-d) deletes the xattr attr_name.
#The fifth form (-c) deletes (clears) all xattrs.

#options:
# -h: print this help
# -l: print long format (attr_name: attr_value and hex output has offsets and
#     ascii representation)
# -r: act recursively
# -s: act on the symbolic link itself rather than what the link points to
# -v: also print filename (automatic with -r and with multiple files)
# -x: attr_value is represented as a hex string for input and output

#-------------------------------------------------------------------

sudo xattr -rd com.apple.quarantine /Applications/MyFuckinApp.app