root切换其余用户提示permission denied

1、用root账号切换其余账号提示/bin/bash:permission denied,基本上是/bin目录或者/bin/bash的权限问题，改变/bin或者/bin/bash的目录权限为755便可。bash 2、用root账号切换其余账号提示su: warning: cannot change directory to /home/oracle: Permission denied,su: /

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