command signs by tfarcenim_gerg

a command that gives you a sign that says what you want then when you click activates a command

example:

/give @p sign 1 0 {
    BlockEntityTag: {
        Text1: "{\"text\":\"I WILL GIVE YOU A COMMAND BLOCK\",\"color\":\"red\",\"underlined\":true,\"clickEvent\":{\"action\":\"run_command\",\"value\":\"/give @p command_block 1\"}}"
    },
    display: {
        Name: "Custom Sign"
    }
}