notes.md

agenda

• installation
• variables
  • types
    • strings
    • arrays
    • associative arrays
    • integers (mostly) declare -p still shows as a string, but $((i + 1)) still works **
• show a list of basic commands (separated by built-in vs not) and operators
  • built-in
    • man builtins
  • external programs
    • sed, awk, grep, ls, echo, bash, which, etc...
    • show location on filesystem, e.g.: ls /bin/
  • show some examples
    • echo "hello world"
    • grep 'hello' file.txt
• redirection
  • examples
    • saving output to a file with '>'
    • reading a file as input with '<' (using sed)
    • reading a variable as input with '<<<'
• pipes
  • examples
    • echo 'hello world' | sed 's/h/c/'
• BASH SCRIPTS
  • shebang
  • chmod +x
  • functions
    • passing parameters to functions, compare to normal java/python functions
  • if statements
    • ** talk about hacky boolean option
    • show conditions
    • talk about command exit status codes
  • for loops
    • over arrays
    • ((i=0; i<X; i++))
  • while loops
• stdout / stderr
  • examples

** talk about this later