IBM 3770 manual Script Commands, Sample Script Files

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Demo User’s Guide

Script Files

To accommodate unattended operation, 3770Link utilizes an extremely powerful script language.

There is a corresponding script command for most of the menu items available in interactive mode. In addition there are numerous commands to manage error checking, error recovery, looping, and branching.

Script files can be executed by specifying the -sfilenamecommand line option of 3770Link SO or from the File Run Script menu in 3770link interactive mode. Additionally, you may use the -uswitch with 3770Link SO to manually enter script commands from the keyboard.

Script files are produced with a text editor or word processor. Script files are assumed to have an extension of ‘.s’.

Script Commands

For a list of the commands understood by 3770Link’s script processor and valid command line options, see the back of this guide.

Sample Script Files

The simple LU script file shown below attempts to connect up to three times, defines the printer to be a file named “testptr”, and sends a file named “jcl.txt”. If the send file completes normally, the script waits for a single file from the host and then disconnects and exits. This script file example assumes that a single LU is configured for the current connection and that automatic logon (INIT_SELF) has been enabled and configured for the single LU specified for this connection.

LOOPCOUNT 3

:conn_loop

CONN

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Contents 3770Link SNA/RJE Emulation Demo Version User’s Guide Table of ContentsNotational Conventions Ordering Information 3770Link Demo Version User’s GuideTechnical Support Introduction to 3770Link Emulation Features 3770Link FeaturesRJE Server Features Media and Files Software Installation3770LINK.HLP Running 3770Link GUI and Simulating an Interactive SessionReceive Complete, 131 Records Received Running 3770Link SO and Simulating an Unattended Session Simulating Sending and Receiving Files with the Demo Script Files Script CommandsSample Script Files Disc Quit Disc 3770Link Script Language Dial xxx-xxx-xxxx /t=x /m=x IFERROR= nnnn label Iferror nnnn labelForm formname If label1, label2Ifnfile filename label Iffile filename labelPrint file ptr Rename filename1 to filename2 Rename filename1 filename2Ffile Command Line Options

3770 specifications

The IBM 3770, introduced in the mid-1970s, was a pioneering multi-user data station known for its innovative design and functionality, aimed primarily at supporting online transaction processing. As one of the early efforts in integrating computers with communication technology, the 3770 set a foundation for subsequent advancements in the field.

One of the standout features of the IBM 3770 was its ability to support multiple user connections simultaneously. This multi-user capability allowed organizations to connect various terminals to a central computer, facilitating efficient data entry and retrieval processes. Each terminal could communicate with the mainframe, enabling users to access real-time data and execute transactions concurrently, which was revolutionary for its time.

The 3770 utilized a proprietary communication protocol that leveraged synchronous serial communication, ensuring reliable data transmission over telephone lines and enabling the automation of remote data entry. This technology reduced the need for physical interaction with centralized data processing systems, leading to increased productivity and efficiency in organizational workflows.

In terms of characteristics, the IBM 3770 was equipped with a dedicated processor for handling input and output operations. This feature offloaded routine tasks from the mainframe, optimizing overall performance and freeing up computational resources for more intensive processing activities. Additionally, the system was designed to support a variety of input devices, including keyboards and card readers, accommodating different user preferences and operational needs.

The architecture of the IBM 3770 included a unique data format that streamlined the handling of transactions. This format allowed for easy integration with existing databases and applications, making it an attractive solution for businesses looking to modernize their data processing capabilities. The system also featured built-in error detection and correction routines, which ensured data integrity during transmission.

Moreover, the IBM 3770 was recognized for its flexibility and scalability. Organizations could easily expand their networks by adding more terminals or connecting additional mainframe storage. This scalability was crucial for businesses experiencing growth, as it eliminated the need for frequent system overhauls.

In summary, the IBM 3770 was more than just a data station; it was a significant step forward in online transaction processing, combining innovative communication technologies with multi-user functionality. Its features, such as dedicated processing, support for various input devices, and scalability, set the stage for future advancements in data systems and remain influential in shaping the landscape of computing.
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