brew install findutils ack grep bash gcc (...)! they are far more powerful (*) Only some of them are really BSD, but Apple usually ships dinosaur-aged GNU software with their OS.
unrar (...) • wget: downloads files from the internets • unrar: unpacks files from the internets • colordiff: get colorful differences between files • rmtrash: send files to OSX trash instead of deleting them alias diff=colordiff alias find=gfind alias rm=rmtrash ...and make them your defaults
and unicorns • unified history between tabs • tab tab tab! out of the box autocompletions for almost everything • keyboard navigable completion lists • powerful globbing and expansions • syntax highlighting • plays well with floating point calculations • (many more! STFW!) ZSH is essentially an enhanced experience of everything you already know from BASH $ brew install zsh