function fh() {
   command=$(fc -ln 0|               # show history without line numbers
     tail -r         |               # reverse the order
     awk '!x[$0]++'  |               # drop duplicates (https://unix.stackexchange.com/a/193331)
     fzf -e +s \
         --color=light \
         --height=20 \
         --inline-info \
         --border \