subprocess模块主要有call().check_call().check_output().Popen()函数,简要描述如下: Main API ======== call(...): Runs a command, waits for it to complete, then returns the return code. check_call(...): Same as call() but raises CalledProcessError() if return code is
在linux系统中,root帐号执行php命令: mkdir('test', 0777); 结果文件的权限依然为: drwxr-xr-x 2 root root Jul 27 19:30 test drwxr-xr-x表示权限是0755,并没有达到想要的效果. 分析原因: linux系统创建文件/文件夹时有一个默认权限,此权限受 umask 设置影响,默认配置在/etc/bashrc配置文件中: # By default, we want this to get set. # Even fo