MacOS – Homebrew uninstalling fails

find, tar, awk, and sed are not included in coreutils:

brew install coreutils findutils gnu-tar gawk gnu-sed

You can use brew search gnu to search for other formulas where the name contains gnu.

Formulas for other commands that are not installed by default:

brew install ack aspell dos2unix exiftool ffmpeg ghostscript iftop imagemagick lame multimarkdown netcat pandoc parallel pidof poppler pstree recode rename sox ssh-copy-id tmux tree watch wget xmlstarlet

I tried running compgen -c on Ubuntu and OS X VMs and running this:

comm -23 <(sort ubuntu) <(sort osx) | parallel -P10 brew info {} \> /dev/null 2\>\&1 \&\& echo {} | sort -u | tr '\n' ' '

There were surprisingly few formulas, but the formula names don't always match command names:

_lzma apg arping aspell dash dnsmasq dpkg duplicity enchant fribidi gcc gettext ghostscript gpg gs lesspipe logrotate lzma lzmainfo mawk mtools mtr netcat ntfs-3g pdftohtml pidof pkg-config pstree rename ssh-copy-id unlzma usbmuxd watch wget xz

The brew doctor should be helpful about this, next best thing to try is repairing formulae from taps with brew tap --repair. If that still does not help, try the following steps:

brew untap <X> where is from brew tap.

cd $(brew --prefix)

git clean -fd

git reset origin/master --force

brew update

brew tap <X> to have your taps again.