Topics
- Getting started with GNU/Linux
- Shell
- Sampling
- Getting started with progress-4gl
- Queries
- Variables
- Functions
- Strings
- Working with numbers
- Conditional statements
- Procedures
- FIND statement
- TEMP-TABLE
- Iterating
- Compiling
- OS-utilities
- Monitoring Varnish
Examples
- Hello World
- Basic Shell Utilities
- Installation or Setup
- Hello, World!
- FizzBuzz
- Setting up the environment
- Basic Query
- Multi-Tables Query
- Creating the "sports2000" demo database from the command line
- Basic variable declarations
- Arrays - defining and accessing
- Moving poisition withing a query using next, first, prev and last
- Simple function
- Forward declaring functions
- Multiple input parameters
- Multiple return statements (but a single return value)
- Output and input-output parameters
- Commenting code
- Recursion
- Defining, assing and displaying a string
- Concatenating strings
- String manipulation
- CASE-SENSITIVE strings
- Using the LIKE keyword
- Operators
- More mathematical functions
- BEGINS and MATCHES
- Comparing numbers
- Random number generator
- Converting upper and lower case
- Dynamic call of a function
- IF ... THEN ... ELSE-statement
- CASE
- IF ... THEN ... ELSE-function
- A basic internal procedure
- INPUT and OUTPUT parameters
- Recursion - see recursion
- Scope
- Lists
- Program files
- FIND basic examples
- Availability and scope
- FIND and locking
- Defining a simple temp-table
- A temp-table with an index
- More indexes - indices...
- Running sports2000 as a service
- Special characters (and escaping)
- Inputting and outputting temp-tables
- DO WHILE
- DO var = start TO finish [BY step]
- REPEAT
- Application Compiler
- COMPILE statement
- COMPILER system handle
- OS-COMMAND
- OPSYS
- OS-ERROR
- OS-GETENV function
- OS-COPY
- OS-DELETE
- OS-CREATE-DIR
- OS-APPEND
- OS-RENAME
- OS-DRIVES (Windows only)
- Client metrics - incoming traffic
- Cache performance
- Monitoring cached objects
- Monitoring threads
- Monitoring backend metrics
