include sh.snip

snippet     echoerr
abbr        echo to stderr
options     head
    echo ${1} 1>&2

snippet     scriptdir
abbr        directory of script
options     word
    $(dirname \$0)

snippet     yesno
abbr        get yes or no from user
options     head
    read -q "REPLY?${1}"${0}
    case $REPLY in
        y|Y)
            ${1}
            ;;
        n|N)
            ${2}
            ;;
        *)
            ${3}
            ;;
    esac
    ${0}