FreeBSD sh: is it possible to import a list of commands into fc without executing them?

I cannot find any indication that sh supports persistent history. So I am trying to create this functionality manually. At the end of my .shrc history I have added this: trap -- 'fc -ln -- 1 >> "$HOME/.sh_history"' EXIT This ensures that every time I exit the shell that the commands I have entered in that session are not lost in wind. Now that I have the saving history bit sorted out, I am wanting to import all commands in ~/.sh_history into fc upon logging in so that I can call commands from previous shell sessions. I realize that it won't be quite as simple as this because I will have to find a way to make sure that I only append new commands to the end of ~.sh_history, but I am confident I can hack it out provided that it is even possible to give a list of commands to fc without executing them.