randtouch.zsh

# Touch n files with random names
randtouch() {
  # A number of files to create must be specified
  if [[ -n "$1" ]] && [[ "$1" = "${1%%[!0-9]*}" ]]; then

    # Check if an extension was specified
    if [[ -n "$2" ]]; then

      # Extensions can only contain 2-10 letters
      if [[ "$2" =~ ^\\.?[a-z]{2,10}$ ]]; then

        # Check if extension has a dot in it...
        if [[ "$2" =~ ^\\. ]]; then
          local extension="$2"
        else
          # ...or add one
          local extension=".$2"
        fi
      fi
    else
      # If no extension was passed, use a default one
      local extension=".randtouch"
    fi

    # Ask the user if he is sure!!
    read "answer?Are you sure you want to create $1 random files in $PWD? "
    if [[ "$answer" =~ ^[Yy] ]]; then
      for (( i = 0; i < $1; i++ )); do
        local rand=$(hexdump -n 16 -v -e '/1 "%02X"' /dev/urandom)
        touch "$rand$extension"
        echo -ne "."
      done
      echo -ne "Done!\n"
    fi
  else
    echo "$fg[red]You need to supply a number ro randtouch!$fg[default]"
  fi
}