@@ -54,4 +54,24 @@ Shell => All the commands are fire on shell. The shell is working because it is
5454- `` history `` => It gives the history of previously used commands
5555 - `` history > file_name.txt `` => It redirect the history of commands into the file.
5656- `` cat file_name `` => It is allow us to read the file.
57- - `` head `` or `` tail `` => It is also allow us to read the file but only heading part (head) and footing part(tail)
57+ - `` head `` or `` tail `` => It is also allow us to read the file but only heading part (head) and footing part(tail)
58+ 59+ 60+ #### Permissions
61+ * Linux was designed to allow many users to access single system at the same time. Also fies need to be protected from each other.*
62+ - PERMISSION => Basically there are three types of permission in Linux.
63+ - Read
64+ - Write
65+ - Execute
66+ 67+ * How to read Permissions ?
68+ * drwxr-xr-x 10 admin staff 320 28 jul 23:04 admin
69+ * ** d** First word represent the which kind of file it is.(File[ -] , Directory[ d] )
70+ * ** rwx** Represent the creator permission like root,admin.
71+ * ** r-x** Represent the Groups permissions
72+ * ** r-x** Represent the User permissions.
73+ * Number of the permissions:
74+ * x = 4
75+ * w = 2
76+ * r = 1
77+ - `` ``
0 commit comments