User test preparation:
groupadd incahome ## a family (dongdaxia home)
useradd dongdaxia -g incahome ## so that the family owners dongdaxia belong to this family incahome
If the user exists dongdaxia with the following modifications to the user command group
-g incahome dongdaxia the usermod
useradd -g incahome ### dongxiaomei family members of this family
useradd test than ### people outside, the owner and family members of people
Create a file of test preparation;
chmod +x /dongdaxia/test.sh cat /dongdaxia/test.sh ll /dongdaxia/test.sh
Summarizes the test results: Linux common file read, write, execute permissions Description
For a description of deleted files
Schematic:
