Add --no-rehash.

.bashrc.local

@@ -9,12 +9,12 @@ alias update="(cd ~/git; make all)"
 export PYENV_ROOT="${HOME}/.pyenv"
 if [ -d "${PYENV_ROOT}" ]; then
     export PATH="${PYENV_ROOT}/bin:${PYENV_ROOT}/shims:${PATH}"
-    eval "$(pyenv init -)"
+    eval "$(pyenv init - --no-rehash)"
 fi
 #
 export N_PREFIX="$HOME"
 #
 if [ -d "${HOME}/.rbenv" ]; then
     export PATH="${HOME}/.rbenv/bin:${PATH}"
-    eval "$(rbenv init -)"
+    eval "$(rbenv init - --no-rehash)"
 fi