Add User group Ateam
650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/76/0A/wKioL1ZJWsigzccWAAAvztm2lYg934.png "title=" Rhce7-classroom-2015-11-09-22-46-08.png "alt=" Wkiol1zjwsigzccwaaavztm2lyg934.png "/>
Create a directory under root user/home/ateam-text
650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/76/0C/wKiom1ZJWnexTCV8AABDtuK0xvs882.png "title=" Rhce7-classroom-2015-11-09-22-47-47.png "style=" Float:none; "alt=" Wkiom1zjwnextcv8aabdtuk0xvs882.png "/>
Add Andy Alice Tom user
650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M00/76/0A/wKioL1ZJWsfjpv9YAADhxFBfcIg021.png "title=" Rhce7-classroom-2015-11-09-22-50-21.png "style=" Float:none; "alt=" Wkiol1zjwsfjpv9yaadhxfbfcig021.png "/>
Add Andy Alice users to the Ateam group as a supplemental group
650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/76/3C/wKioL1ZNpfjwnCktAACCUA1irBQ114.png "title=" Rhce7-classroom-2015-11-19-18-01-26.png "alt=" Wkiol1znpfjwncktaaccua1irbq114.png "/>
Change the owning group of the directory/home/ateam-text to Ateam
650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/76/0A/wKioL1ZJW6Sh4NEvAABIVpiHkdI417.png "title=" Rhce7-classroom-2015-11-09-22-52-48.png "alt=" Wkiol1zjw6sh4nevaabivpihkdi417.png "style=" float:none; "/>
Change group permissions for directory/home/ateam-text
650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M00/76/3E/wKiom1ZNps3hmxBzAABSTATGiI4930.png "title=" Rhce7-classroom-2015-11-19-18-06-11.png "alt=" Wkiom1znps3hmxbzaabstatgii4930.png "/>
At this point Andy Alice user has read and write permission under directory/home/ateam-text and Tom user does not have read and write permission
650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/76/3E/wKiom1ZNq_Wz9vmhAABU3MQ-35g958.png "style=" float: none; "title=" Rhce7-classroom-2015-11-19-18-58-13.png "alt=" Wkiom1znq_wz9vmhaabu3mq-35g958.png "/>650) this.width=650, "src=" Http://s3.51cto.com/wyfs02/M02/76/3E/wKiom1ZNq_Wz9AYBAABScEi7TPY310.png "title=" Rhce7-classroom-2015-11-19-18-58-06.png "style=" Float:none; "alt=" Wkiom1znq_wz9aybaabscei7tpy310.png "/>
650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/76/3D/wKioL1ZNrEriq-7HAAA_rCjG8N0975.png "style=" float: none; "title=" Rhce7-classroom-2015-11-19-18-58-23.png "alt=" Wkiol1znreriq-7haaa_rcjg8n0975.png "/>
But for Andy Alice, each subdirectory created under directory/home/ateam-text does not have read and write permissions
650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/76/3D/wKioL1ZNrZuBIaPWAAA-xvtpB3w971.png "title=" Rhce7-classroom-2015-11-19-19-05-50.png "alt=" Wkiol1znrzubiapwaaa-xvtpb3w971.png "/>
Because the owner of the subdirectory created and all groups have no read and write permissions for the user
Special permissions are needed to "inherit" the newly created file permissions
Make the newly created file under directory/home/ateam-text the same as the group for that directory (inherit the group permissions of directory/home/ateam-text)
650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/76/3E/wKiom1ZNrxKiYGZpAABJGhKTuGY133.png "title=" Rhce7-classroom-2015-11-19-19-13-18.png "alt=" Wkiom1znrxkiygzpaabjghktugy133.png "/>
At this point the newly created subdirectory belongs to the group Ateam
650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M01/76/3D/wKioL1ZNsFbQCEGNAABTF4qe_ik753.png "title=" Rhce7-classroom-2015-11-19-19-16-55.png "alt=" Wkiol1znsfbqcegnaabtf4qe_ik753.png "/>
Now Alice user can modify all the files that Andy creates later
650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/76/3D/wKioL1ZNsVSxVVhuAABbZA7NWIY936.png "title=" Rhce7-classroom-2015-11-19-19-21-36.png "alt=" Wkiol1znsvsxvvhuaabbza7nwiy936.png "/>
This article is from the Linux Learning Notes blog, so be sure to keep this source http://10516823.blog.51cto.com/10506823/1715203
A file created by a user (Andy) under Linux allows a specific user (Alice) to modify