# CHAIN

> [HTML Version](chain.htm)

_Written September 2024_

**CHAIN <command>**

CHAIN terminates the current program (see [END](end.htm.md)) and executes the specified command line as it would be executed from the shell prompt in the current directory. If the first specified filename/token does not have a file extension, it is assumed to be RUN program, executed as "RUN <command>". To chain to a system command, it must be fully qualified. Both variations accept additional command line arguments. The system command variation also supports the ability to string multiple commands together, separated by chr(13) + chr(10).

**Examples**

CHAIN "MENU1"                    \! (RUN MENU1)

CHAIN "MENU2/OPTION:1/SILENT"    \! Argument passing

CHAIN "SYS:HOST.LIT"             \! Exit A-Shell

CHAIN "SYS:LOG.LIT/N AR:" + chr(13) + chr(10) + "RUN ARMENU"