control-o.bash

# A handy j() function, printing some useful info in bash cmdline
j() {
    printf '\n\e[0;35m%(%Y/%m/%d (%a) %H:%M:%S)T\e[0m ' -1
    printf '\n\e[0;33m%s@%s\e[0m ' "$USER" "${HOSTNAME/.*/}"

    if git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
        local GIT_CLEAN=
        local GIT_REF=$(git rev-parse --abbrev-ref HEAD 2>/dev/null)
        git diff-index --quiet HEAD && GIT_CLEAN=1

        if [ "$GIT_CLEAN" ]; then
            printf '\e[0;32mgit:%s(clean) ' "$GIT_REF"
        else
            printf '\e[0;31mgit:%s(dirty) ' "$GIT_REF"
        fi
    fi

    printf '\e[0;34m'
} # end of function j()

# Simple bash prompt
PS1='$PWD \$ \[\033[0m\]'

# Enable Control-O in readline bash
stty discard undef

# Bind Control-O to execute my j() bash function
bind -x '"\C-o": j'