mac下启动tomcat报错:The BASEDIR environment variable is not defined correctly
The BASEDIR environmentvariable is not defined correctly
This environment variable is needed to run this program

解决办法：
把$CATALINA_HOME/bin目录下所有.sh文件添加一个可执行权限。
sudo chmod +x /usr/share/tomcat/bin/*.sh

CATALINA_HOME根据具体配置情况执行上面的命令。