SSH host deletion

zsh/funcs/ssh-del

@@ -0,0 +1,24 @@
+function ssh-del-num {
+    local line_no
+    set -u
+    line_no=${1}
+
+    sed -i.bak "${line_no}d" ~/.ssh/known_hosts
+    set +u
+}
+
+function ssh-del-name {
+    local host_name
+    set -u
+    host_name=${1}
+    
+    sed -n "/${host_name}/p" ~/.ssh/known_hosts
+    printf "Delete the above? (y/n)"
+    read -q resp
+
+    if [[ "y" == "${resp}" ]]; then
+        sed -n -i.bak "/${host_name}/d" ~/.ssh/known_hosts
+    fi
+
+    set +u
+}