how to generate ssh private key in linux code example

Example 1: how to generate ssh key in linux

ssh-keygen -t rsa -b 4096
ssh-keygen -t dsa
ssh-keygen -t ecdsa -b 521
ssh-keygen -t ed25519

Example 2: ssh keygen

ssh-keygen -t rsa -b 8192

Example 3: create public key linux

mkdir key_backup
cp id_rsa* key_backup