anyenvを使っているんですが、 /usr/local/heroku/bin /Users/monmon/.anyenv/envs/rbenv/bin /Users/monmon/.anyenv/envs/plenv/bin /Users/monmon/.anyenv/envs/rbenv/shims /Users/monmon/.anyenv/envs/plenv/shims /Users/monmon/.anyenv/bin /Users/monmon/local/bin /Users/monmon/bin /usr/local/sbin /usr/local/bin /usr/bin /usr/bin /bin /usr/sbin /sbin /usr/local/bin のようなPATHがtmuxを起動すると /usr/local/heroku/bin /Users/monmon