Zsh plugin for linuxbrew
antigen bundle smac89/linuxbrew
zgen load smac89/linuxbrew
If you use oh-my-zsh in conjunction with any other plugin manager (for example, the ones listed above), make sure to load this plugin first, before loading oh-my-zsh, otherwise the completions will not work. See this issue posted on oh-my-zsh issues page for the reason why.