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"learn fundamentals: data structures, networking, performance, operating systems, security, unix, math. These are so neglected in the industry, and we’re left w

"learn fundamentals: data structures, networking, performance, operating systems, security, unix, math. These are so neglected in the industry, and we’re left with super complex systems we don’t actually understand as a result." I sometimes hold a "command line fundamentals" course for my teams. Just being able to understand the basics puts them above any team that doesn't. You have to know the ground you're building on. Otherwise even your foundation will be faulty.

myaccountonhn 2y ago
> You have to know the ground you're building on. Otherwise even your foundation will be faulty Exactly, well put. Knowing the fundamentals leads to a more solid, safer foundation as you understand better what you can do with what you have and avoid layers of abstraction.
trashburger 2y ago
Could you please share an itinerary for this? I’d also like to hold a similar course but don’t know where to start.
- bloopernova 2y ago
  Sure thing! This assumes everyone has macOS, but isn't very mac-specific. * Introduction Quick history of Unix * When you log in Difference between login and interactive shells System shell files vs user shell files .zshenv for environment variables like PATH, EDITOR, and PAGER .zprofile for login shells, we don't use it .zshrc for interactive shells Your login files are scripts, and can have anything in them * Moving Around ** Where am I? pwd = "print working directory" stored in variable $PWD Confusingly, also called current working directory, so you may see CWD or cwd mentioned ** What is here? ls ls -al ls -alt . prefix to filenames makes them hidden . is also the current directory! .. means the parent directory ** Finding my way around cd cd - dirs | sed -e $'s/ /\\\n/g' ** Getting Help From The Man man 1 zshbuiltins manpage sections ** PATH echo $PATH | sed -e $'s/:/\\\n/g' zshenv PATH setting ** Environment Variables env | sort EDITOR variable ** History ctrl-r vs up arrow ** Permissions Making something executable ** Prompts zsh promptinit zsh prompt -l ** Pipes Iterate to show how pipes work cat ~/.zshrc | grep PATH ** Commands *** BSD vs GNU commands BSD are supplied by Apple, and Apple often uses old versions GNU are installed via homebrew, and match those commands available in Linux

myaccountonhn 2y ago

> You have to know the ground you're building on. Otherwise even your foundation will be faulty Exactly, well put. Knowing the fundamentals leads to a more solid, safer foundation as you understand better what you can do with what you have and avoid layers of abstraction.

trashburger 2y ago

Could you please share an itinerary for this? I’d also like to hold a similar course but don’t know where to start.

bloopernova 2y ago
Sure thing! This assumes everyone has macOS, but isn't very mac-specific. * Introduction Quick history of Unix * When you log in Difference between login and interactive shells System shell files vs user shell files .zshenv for environment variables like PATH, EDITOR, and PAGER .zprofile for login shells, we don't use it .zshrc for interactive shells Your login files are scripts, and can have anything in them * Moving Around ** Where am I? pwd = "print working directory" stored in variable $PWD Confusingly, also called current working directory, so you may see CWD or cwd mentioned ** What is here? ls ls -al ls -alt . prefix to filenames makes them hidden . is also the current directory! .. means the parent directory ** Finding my way around cd cd - dirs | sed -e $'s/ /\\\n/g' ** Getting Help From The Man man 1 zshbuiltins manpage sections ** PATH echo $PATH | sed -e $'s/:/\\\n/g' zshenv PATH setting ** Environment Variables env | sort EDITOR variable ** History ctrl-r vs up arrow ** Permissions Making something executable ** Prompts zsh promptinit zsh prompt -l ** Pipes Iterate to show how pipes work cat ~/.zshrc | grep PATH ** Commands *** BSD vs GNU commands BSD are supplied by Apple, and Apple often uses old versions GNU are installed via homebrew, and match those commands available in Linux