Language

Unicage extends Unix shell scripting with valuable data management commands

All programs are filters - The clearest filter is a command

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  • Independent command set honed to single functions
  • Simple to use (manual-less)
  • Commands written in C, Python, Java, perl, awk, etc.
  • Makes it simple to perform complicated business processing by combining simple commands.
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Unicage maximizes multi-core CPU efficiency through the use of pipes

Shell Script Pipe Processing

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  • Distributed to cores by process
  • Data is processed quickly in memory
  • If you use named pipes you can program branches explicitly

How to Write Shell Scripts

Shell scripts are:

  • Script header style
  • Comment style
  • Variable and file naming rules
  • Rules for naming temporary files
  • One command per line
  • Transfer data using files (not environment variables)
  • Include processing is forbidden File layout style
  • Execution log style
  • Rules for naming files
  • Output execution start and end times
  • Generate a semaphore file
  • Keep it short
  • Separate script and data in complex IF statements
  • Delete garbage files
  • Don’t create versions (but make backups)
  • Multi-level calls prohibited
  • Overwrite the copyright
  • Understand the size of the processing file
  • Database
  • Date/time
  • Formatting
  • Input/Output
  • Mathematical
  • String functions
  • System Functions
  • Statistical

Documentation

1. Very little documentation is required for development:

  • Configuration of datand programs is fixed, so only basic documentation is necessary.
  • Required documents are as follows:
    - Application I/O API specifications
    - Dimensions of source data

2. Documentation for understanding the system is practical

  • “System Purpose”, “Business Flow”, “Manuals” are needed.
  • Most information needed to understand the system can be obtained by looking at the system peration itself (examples below):
    - Data configuration and relationships
    - Application configurationand relationships
    - Batch schedules
    Detailed Specifications (written in the shell scripts)

UNICAGE commands

  • Database
  • Date/time
  • Formatting
  • Input/Output
  • Mathematical
  • String functions
  • System Functions
  • Statistical