bash 正确使用 mkdir -m -p 和 chown
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Using mkdir -m -p and chown together correctly
提问by jquery
I would like to create a directory using a bash script and then set the mode to 00755 at the same time
我想使用bash脚本创建一个目录，然后同时将模式设置为00755
mkdir -p -m=00755 "/dir/dir2"
Is this the correct way of using them together and can I also add chown command to the same line while creating them?
这是一起使用它们的正确方法吗，我还可以在创建它们时将 chown 命令添加到同一行吗？
回答by Ignacio Vazquez-Abrams
It goes a little like this:
它有点像这样：
install -d -m 0755 -o someuser -g somegroup /dir/dir2
回答by hek2mgl
If you want to set the owner during creation, you can simply impersonate as this user, using sudofor example:
如果您想在创建过程中设置所有者，您可以简单地模拟为该用户，sudo例如使用：
sudo -uTHE_USER mkdir -p -m=00755 "/dir/dir2"
This has the advantage that there will be no time difference between creation and changing the ownership, which could otherwise being harmful if exploited.
这样做的优点是创建和更改所有权之间没有时间差，否则如果被利用可能会有害。
回答by phil
Yes that should work. As for the chown, simply follow the command ' && chown... '. && is similar to ; except the next command ONLYexecutes if the previous command exits success (0).
是的，这应该有效。至于chown，只需按照命令' && chown... '。＆＆ 类似于 ; 除了下一个命令仅在上一个命令退出成功 (0)时才执行。
