Linux下tomcat启动BASEDIR environment variable问题

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

原贴：http://zhangzcz1999.javaeye.com/blog/244023