[Practical commands] Linux users, user groups, and linux User Groups

[Practical commands] Linux users, user groups, and linux User Groups

Change file owner-R indicates recursion.

Chown [-R] root. work test changes the test file to the owner root, and the user group works. Chown [-R] work test: Change the test file to the owner root.

Change User Group-R indicates recursion.

Change the user group of the test file to nagios.

Change file PropertiesChmod

Modify chmod 776 test with a number and change the File Permission using the symbol type chmod u = rwx, g + r, o + x test u = rwx, g + r, there must be no space before the o + x text.

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