摘要：
useradd -h查询使用方法 useradd -g sysadmin -d /home/devops -m -c "DevOps Installation User" -s /bin/bash devops 设置用户密码 passwd devops 阅读全文
2016年10月12日 #
摘要：
The difference between "-" and "no hyphen" is that the latter keeps your existing environment (variables, etc); the former creates a new environment ( 阅读全文