+if [[ $(which -s pidof) -eq 0 ]]; then
+ function pidof () { ps -e -o pid,comm | grep "$1" | awk '{print $1}'; }
+fi
+
+function ssh-forget() {
+ sed -i "" "/^$1,/d" ~/.ssh/known_hosts
+}
+
+function ssh-learn() {
+ sed -i "" "/^$1,/d" ~/.ssh/known_hosts
+ ssh-keyscan -t rsa $1 >> ~/.ssh/known_hosts
+}