Domain: Script Engineering

Script Engineering

Building reliable shell scripts with proper history management, IO control, chaining, expansion, environment variables, and defensive error handling.

mindmap
  ((Script Engineering))
    (command history)
    (IO redirection)
    (command chaining)
    (process substitution)
    (brace expansion)
    (environment variables)
    (defensive scripting)
    (bash automation)
    (powershell automation)

02-command-history

• Search, recall, re-run
• Building commands incrementally
• History configuration
• PowerShell equivalents

03-io-redirection

• Stdout, stderr, stdin redirection
• Production Logging Patterns
• Redirect-before-write gotcha
• PowerShell equivalents

04-command-chaining

• AND operator
• Semicolon
• OR operator
• catch pattern
• Pipe

06-process-substitution

• Process Substitution
• Here Documents
• Here Strings

05-brace-expansion-and-globbing

• Brace Expansion
• Globbing and extended patterns
• Shell options for .bashrc
• PowerShell equivalents

01-environment-variables

• Propagation model
• Setting and exporting
• Secure Credential Handling
• PowerShell equivalents

07-defensive-scripting

• Exit on error
• Unset variable protection
• Pipeline failure propagation
• Production script template
• Trap cleanup on exit

01-bash-automation

• File intake and validation
• Data transformation
• API interaction
• Database operations

02-powershell-automation

• File intake and validation
• Data transformation
• API interaction
• Database operations