今天安装TOMCAT5，下载的是其ZIP安装包，在Linux下unzip后，使用sh startup.sh启动tomcat，出现
- Cannot find ./catalina.sh
- This file is needed to run this program
Cannot find ./catalina.sh
This file is needed to run this program
然后又使用sh catalina.sh命令执行，结果
没有设置javahome，然后在catalina.sh里面添加：
- JAVA_HOME=/usr/lib/jvm/jdk1.5.0_16;
JAVA_HOME=/usr/lib/jvm/jdk1.5.0_16;
再次执行sh catalina.sh,错误如下：
- The BASEDIRenvironmentvariable is not defined correctly
- This environmentvariable is needed to run this program
The BASEDIRenvironmentvariable is not defined correctly
This environmentvariable is needed to run this program
经过无数百度后，才发现那些.sh文件都不是可执行文件，于是找到命令：
- chmod +x *.sh
chmod +x *.sh再次执行 sh catalina.sh通过，然后用sh startup.sh成功启动