Sash v3.7-mg

Stand-alone shell (sash) is a Unix shell used for booting up the MG-35/45, and as the default command interpreter.

Boot (init)

Sash first runs as the boot manager (init), checking for (and executing if found):

• ${HOME}/.aliasrc  (${HOME} defaults to '/' in kernel)
• /etc/sashrc

After it finishes running sashrc, it displays a command prompt on the console (serial port in developer kernel).

Subshell (sh, sash)

Whenever sash starts as a subshell, it checks for (and executes if found):

• ${HOME}/.aliasrc  (${HOME} defaults to '/usr/home' in /etc/sashrc)

Shell language

The sash shell has been extended to include support for:

• ${VARNAME} environment variable expansion
• if [ <condition> ]

  then

      some command

  elif [ <condition> ]

      some other command

  else

      a third command

  fi

• while [ <condition> ]

  do

      some command

      some other command

  done

Shell commands