Simple command line note taking script.

t.zsh

#!/bin/zsh

# Author: Adam Heins
# Date: 2015-10-22

t() {
  # Make the ~/.t directory if it does not exist.
  [ ! -d ~/.t ] && mkdir ~/.t

  if [ -z "$1" ]; then
    local last cur_dir
    [ -f ~/.tlast ] && last=$(head -n 1 ~/.tlast)

    # Save current directory to return to later.
    cur_dir=$(pwd)
    cd ~/.t
    "$EDITOR" $last
    cd $cur_dir
    return
  fi

  case "$1" in
    "--")
      "$EDITOR" ~/.t/"$2"
      ;;
    "-h"|"--help")
      echo -e "usage: t [-h] [-l] [-r FILE]\n"
      echo -e "arguments:"
      echo -e "  -h, --help           show this help message"
      echo -e "  -l, --list           list all files in ~/.t"
      echo -e "  -r, --remove FILE    remove a file from ~/.t"
      ;;
    "-l"|"--list")
      ls ~/.t
      ;;
    "-r"|"--remove")
      # Bail if the user tries to delete something outside this directory.
      [[ "${2:0:2}" == ".." ]] && return 1;
      rm ~/.t/"$2"
      ;;
    *)
      "$EDITOR" ~/.t/"$1"
      # If the file existed (it has been saved), copy it into the last file
      # store.
      [ -f ~/.t/"$1" ] && echo "$1" > ~/.tlast
      ;;
  esac
  return 0
}