NAME
  p - a friendly script launcher

USAGE
  p               # lists all installed script
  p [script]      # run the given script
  p help          # run the help script giving this help
  p help [script] # print the help of the given script (see notes)

INSTALLATION
  Put something like this in your $HOME/.bashrc:

  . /path/to/p.sh (if you installed with make /usr/local/opt)

  Optionally you can set these vars in a file named, ~/.pshrc:

  Set PSH_CMD to change the command name (default p).
  Set PSH_DIR to change dir where you store scripts (default ~/.pshdir).
  Set PSH_LIST to change the command that lists available scripts (default ls).

  this default help script is automatically installed,
  all you have to do now is put your scripts in PSH_DIR !!

NOTE
  1. heavily inspired by z.sh
  2. to make a an help block in a new script just wrap it between --- just see the help script itself