[root@exdata1 Packages]# su – oracle

-bash: /dev/null: Permission denied

-bash: /dev/null: Permission denied

-bash: /dev/null: Permission denied

-bash: /dev/null: Permission denied

-bash: /dev/null: Permission denied

-bash: /dev/null: Permission denied

 

查看/dev/null权限

Ls -rtl /dev/null

改对权限就能正常切换




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