Page 43 - RHEL8 BOOK

1. Adding a new directory (folder)
[root@sun ~] # mkdir /myfolder
[root@sun ~] # cd /myfolder

2. Adding new file in directory
[root@sun myfolder] # touch file1

3. To check working username
[root@sun myfolder] # whoami

4. To check an existing file/dir default permissions
[root@sun myfolder] # ls –ld file1
[root@sun myfolder] # ls –ld /myfolder

5. To set the permission to the gorup only
[root@sun ~]# chmod g+w file1
root@sun ~]# ls -ld file1
-rw-rw-r-- 1 root root 0 Oct 9 09:28 file1

6. To remove read permissions for others only
[root@sun ~]# chmod o-r file1
root@sun ~]# ls -ld file1
-rw-rw---- 1 root root 0 Oct 9 09:28 file1

7. To assign the read, write, execute permission to others only
[root@sun ~]# chmod o+rwx file1
[root@sun ~]# ls -ld file1
-rwxrw-rwx 1 root root 0 Oct 9 09:28 file1

8. Assign the execute permission to owner, group and others also
[root@sun ~]# chmod +x file1
[root@sun ~]# ls -ld file1
-rwxrwxrwx 1 root root 0 Oct 9 09:28 file1
9. Remove the execute permission to owner, group and others also
[root@sun ~]# chmod -x file1
[root@sun ~]# ls -ld file1
-rw-rw-rw- 1 root root 0 Oct 9 09:28 file1

10. To set the full permission in symbolic mode
[root@sun ~]# chmod ugo=rwx file1
[root@sun ~]# ls -ld file1
-rwxrwxrwx 1 root root 0 Oct 9 09:28 file1

11. To set the default permission in Absolute mode
[root@sun ~]# chmod 644 file1
[root@sun ~]# ls -ld file1
-rw-r--r-- 1 root root 0 Oct 9 09:28 file1

S. Pradhan
(MCA, MBA-IT, BCA, CCNA, MCSA 2012, RHCE, ETHICAL HACKING)
Email Id:-spradhan.iiht@gmail.com
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