The following sets up a key binding to grab interesting lines from the history, throw them into a file, and pop it up in an editor:
# put interesting lines from history into a file, open an editor
function h2e() {
echo "#! /bin/bash" > "$3"
history | tail -n"$1" | egrep "$2" | sed -re 's/\s*[0-9]+\s+//' >> "$3"
"${EDITOR:-emacs}" "$3"
}
# prompt for h2e's arguments
function h2ei() {
read -p 'num. lines [1]: ' lines
read -p 'pattern [.]: ' pattern
read -p 'file [foo.sh]: ' fn
h2e "${lines:-1}" "${pattern:-.}" "${fn:-foo.sh}"
}
# fix the terminal settings for the duration of a command, revert afterward
function insane() {
save=$(stty -g)
stty sane
"$@"
stty $save
}
# bind F12 to our history grabber
bind -x '"\e[24~":insane h2ei'