Simple function to change to a directory given a key

go.bash

#!/bin/bash
#
# Bookmarks for filesystem paths. For example,
#     > go add logs /var/log
#     > go logs
#     > pwd
#     /var/log

go () {
    if [[ $# -eq 0 ]]; then
        echo 'Usage: go KEYWORD'
        echo '       go list'
        echo '       go search PATTERN'
        echo '       go add KEYWORD [ PATH ]'
        echo '       go remove [ KEYWORD ]'
        return
    fi

    if [[ ! -f $HOME/.gorc ]]; then
        return
    fi

    case "$1" in
        'list')
            cat $HOME/.gorc
            ;;
        'search')
            egrep "$2" $HOME/.gorc
            ;;
        'add')
            local keyword=${2:?"missing KEYWORD"}
            local path=${3:-$(pwd)}

            echo $keyword $path >>$HOME/.gorc
            ;;
        'rm'|'remove')
            local tmp=$( mktemp )

            if [[ -z "$tmp" || ! -f "$tmp" ]]; then
                return
            fi

            if [[ -n "$2" ]]; then
                egrep -v "^$2 " $HOME/.gorc >"$tmp"
            else
                egrep -v " $( pwd )$" $HOME/.gorc >"$tmp"
            fi

            mv "$tmp" $HOME/.gorc
            ;;
        *)
            local dir=$( egrep "^$1 " $HOME/.gorc | cut -d' ' -f2 )

            if [[ -n "$dir" ]]; then
                echo "$dir"
                cd "$dir"
            else
                echo "go: $1: Keyword not found" >&2
            fi
            ;;
    esac
}

# Bash completion.

_go_compgen() {
    if [ -f ~/.gorc ]; then
        COMPREPLY=( $( compgen -W "$( awk '{print $1}' ~/.gorc )" ${COMP_WORDS[COMP_CWORD]} ) )

    else
        COMPREPLY=()
    fi
}

complete -F _go_compgen go