These commands are my most used commands when I'm using my terminal for whatever reason.

CommandPurpose
brew installInstalls software from Homebrew
brew re-installRe-installs software from Homebrew
ls -la [path]Check who owns directory
id -unCheck if your current user owns the directory
sudo chown -R [owner]change permission access of root files to admin
ps -ax; kill(PID number)Force quits an unresponsive application
brew pinPin a specified formulae, preventing them from being upgraded when issuing the brew upgrade command.
brew list -1List installed formulae, one entry per line, or the installed files for a given formulae.
brew list --pinnedShow the versions of pinned formulae, or only the specified (pinned) formulae if formulae are given.
brew update && brew outdatedFetch the newest version of Homebrew and all formulae, then list outdated formulae.
brew upgrade && brew cleanupUpgrade outdated, unpinned brews (with existing install options), then removes stale lock files and outdated downloads for formulae and casks, and removes old versions of installed formulae.
bubo && bubcUpdates Homebrew, lists outdated formulae, upgrades oudated and unpinned formulae, and removes stale and outdated downloads and versions.
brew update && brew cask outdatedFetch the newest version of Homebrew and all formulae, then list outdated casks.
brew cask reinstall $(brew cask outdated) && brew cleanupUpdates outdated casks, then runs cleanup.
npm outdatedChecks outdated node packages
npm update -gUpdates all packages