### [筆記] zsh 的 PATH 不會將 ~ (tilde) 替代為家目錄位置

zsh 的 guide 中

They allow parameter expansion, command substitution and arithmetic substitution, but not any of the others: process substitution doesn't happen, braces and initial tildes and equals signs are not expanded and patterns are not special.

`export PATH="~/.composer/vendor/bin:\$PATH"`

`export PATH="\$HOME/.composer/vendor/bin:\$PATH"`