iterm2出现pyenv:11: command not found: pyenv，prompt_status:5: command not found: wc

iterm2出现pyenv:11: command not found: pyenv，prompt_status:5: command not found: wc

source .zshrc出现报错，发现好多命令无法使用

早上想跑一个go的项目，所以在.zshrc里面添加PATH=$GOPATH/bin，结果就出现了以下问题：

pyenv:11: command not found: pyenv
prompt_status:5: command not found: wc
env_default:1: command not found: env
env_default:1: command not found: grep
env_default:1: command not found: env
env_default:1: command not found: grep
virtualenvwrapper_derive_workon_home:12: command not found: grep
virtualenvwrapper_derive_workon_home:21: command not found: egrep
virtualenvwrapper_initialize:12: command not found: mkdir
virtualenvwrapper_mktemp:1: command not found: mktemp
virtualenvwrapper_tempfile:6: command not found: touch
ERROR: virtualenvwrapper could not create a temporary file name.

结果发现mac的添加path的规则是PATH=$PATH:(需要添加的path)，这样才是添加新path到系统path中，不然系统path就被覆盖了，其他命令自然用不了

修改为export PATH="$PATH:$GOPATH/bin"即可