# Search all directories for this directory name.
    dname() {
        [ $# -eq 0 ] && echo "$0 'dir_name'" && return 1
        fd --hidden --follow --exclude .git --type directory "$*"
    }

    # Search all files for this filename.
    fname() {
        [ $# -eq 0 ] && echo "$0 'file_name'" && return 1
        fd --hidden --follow --exclude .git --type file "$*"
    }

    # Find and replace with a pattern and replacement
    sub() {
        [ $# -ne 2 ] && echo "$0 'pattern' 'replacement'" && return 1
        pattern="$1"
        replace="$2"
        command rg -0 --files-with-matches "$pattern" --hidden --glob '!.git' | xargs -0 perl -pi -e "s|$pattern|$replace|g"
    }

    # Uses z and fzf, if there's a match then jump to it. If not, bring up a list via fzf to fuzzy search.
    unalias z 2> /dev/null
    z() {
        [ $# -gt 0 ] && _z "$*" && return
        cd "$(_z -l 2>&1 | sed 's/^[0-9,.]* *//' | fzf)"
    }