Chmod 计算器
将读、写、执行权限转换为所有者、组和其他用户的 chmod 八进制及符号表示。
使用方法
Reading permission bits
Read is 4, write is 2 and execute is 1. The three digits stand for owner, group and others, so 755 gives the owner full access and read plus execute for everyone else.
- Tick the permissions for each group.
- Read the octal and symbolic result.
- Copy the chmod command into your terminal.
常见问题
What is 777?
Read, write and execute for everyone. It is usually a security risk on a web server.
What does a leading fourth digit mean?
The optional fourth digit sets setuid, setgid and sticky bits. This calculator covers the three permission digits.