Basic Operation about Linux
1. 永久开启/关闭防火墙
在linux中防火墙是一个名叫iptables的工具
开启: chkconfig iptables on
关闭: chkconfig iptables off
即时生效,重启还原
开启: service iptables start
关闭: service iptable stop
2. 查看系统中是否安装了Postgresql
rpm -qa|grep postgresql
查看服务的名称
service --status-all|grep postgres
3. ./bin/startup.sh: command not found
.sh文件不具有可执行权限,chmod +x file.sh
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