gpg --gen-key
# Please select what kind of key you want:
# (1) RSA and RSA (default)
# Your selection? 1
# What keysize do you want? (2048) 4096
# Please specify how long the key should be valid.
# 0 = key does not expire
# Key is valid for? (0) 0
gpg --list-secret-keys --keyid-format LONG
gpg --list-secret-keys --keyid-format SHORT
gpg --list-keys
# If there is only one key, this is enough...
id=$(gpg --list-keys --keyid-format LONG | awk '/^pub/ { sub(/.*\//, "", $2); print $2 }')
gpg --edit-key $id trust quit
# For ultimate trust, enter
# 5\r
# y\r
gpg --quick-set-expire "$id" 0
gpg --quick-set-expire "$id" 0 "*"
gpg --export --armor "$id" > key.pub
gpg --export-secret-key --armor "$id" > key.private
gpg --import key.pub
gpg --allow-secret-key-import --import key.private
gpg --delete-secret-key "Real Name"
gpg --delete-key "Real Name"
gpg --fingerprint
git config --global user.signingkey "$id"