TACL Programming

Tandem Advanced Command Language (TACL) is a software application that provides an interface to the HP NonStop operating system. You can use TACL either as an interactive command interface or as an interpreted programming language to construct programs. NonStop servers are key components of the backbone infrastructure of the largest banks, casinos, retailers, telephone companies, email systems, and stock exchanges worldwide.

As a programming language, the TACL product is most often used for managing systems and processes. You can, for example, use TACL to:

- Automate system startup and shutdown procedures.

- Automate subsystem startup and shutdown procedures; 

- Run utilities and issue commands−either with a fixed set of commands or a flexible set;

- Create a customized environment that simplifies commonly performed tasks for users.

- Control subsystem operation using the Subsystem Programmatic Interface (SPI).

- Communicate with the Event Management Service (EMS) and generate EMS messages.

General Syntax Notation: 

Uppercase letters indicate keywords and reserved words: STATUS

Lowercase italic letters indicate variable items: file-name

[#IF [timenow] > 12 |THEN|
 #OUTPUT Good afternoon
|ELSE|
 #OUTPUT Good morning
]


[#CASE [errornumber]
 |0|
 #OUTPUT [filename] was purged
 |OTHERWISE|
 #OUTPUT [filename] could not be purged
 #OUTPUT Error [errornumber]
]