This file is needed to run this program

今天在linux上部署tomcat 6.0.20,使用sh startup.sh啓動tomcat，出現
Cannot find ./catalina.sh
This file is needed to run this program
Cannot find ./catalina.sh
This file is needed to run this program
然後又使用sh catalina.sh命令執行，結果
沒有設置javahome，然後在catalina.sh裏面添加：
JAVA_HOME=/usr/lib/jvm/jdk1.5.0_16;
JAVA_HOME=/usr/lib/jvm/jdk1.5.0_16;
再次執行sh catalina.sh,錯誤如下：
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
經過無數百度後，才發現那些.sh文件都不是可執行文件，於是找到命令：
chmod +x *.sh
chmod +x *.sh再次執行 sh catalina.sh通過，然後用sh startup.sh成功啓動

來自iteye