gsha

Get sha from recent git commits.
Add this function to your ~/.bashrc

gsha() {
    list=()
    while read -r sha    desc; do
       list+=(  "$sha" "$desc" )
    done  < <(git log --oneline -n${1:-20})
    dialog --output-fd 1        \
           --ok-label "Copy SHA" \
           --cancel-label "Exit"  \
           --menu "Select SHA to copy:" 0 0 0 "${list[@]}"
}

Usage:

sha="$(gsha)"
$ echo $sha
20799ef

^{Don't hold yourself, buy me a beer)}