7. a) In the /tmp directory, the command 'Is -ail' gives the following result: gkb@brihaspati(/tmp)11> Is -ail total 60 162881 drwxrwxrwt 12 root root 4096 Feb 26 09:41 / 2 drwxr-xr-x 21 root root 4096 Feb 26 09:40 / 962144 drwxrwxrwt 2 gkb root 4096 Feb 26 09:33 .es/ 962146 drwxrwxrwt 2 xfs xfs 4096 Feb 26 09:40 font-unix/ 815475 drwxrwxrwt 2 root root 4096 Feb 26 09:41 ICE-unix/ 1271981 drwx -- 2 kb kb 1096 Feb 26 09:41 kde-gkb/ 815452 drwx- 2 gkb gkb 8192 Feb 26 09:51 ksocket-gkb/ 359864 drwx-- 2 root root 4096 Feb 26 09:32 ksocket-root/ 407945 drwx---- 2 gkb gkb 4096 Feb 26 09:41 mcop-gkb/ 831778 drwx- 2 root root 4096 May 23 2003 mcop-root/ 82916 drwx- 2 gkbgkb 4096 Mar 18 2003 orbit-gkb/ 161251 -r-xr-xr-x 1 root root 440 Sep 26 2002 VWare 162882 ------- 1 root gkb 11 Feb 26 09:40 .XO-lock 848439 drwxrwxrwt 2 root kl 1096 Feb 26 09:40 X11- unix/ State whnt the columns 1, 2, 4, 5, 6, 7, 8, 9, 10 contain. b) i) Which command is used for knowing the type of file in the /tmp directory? ii) Which of the items listed above is 'read-only"? iii) In row 3: 962144 drwxrwxrwt 2 gkb root 4096 Feb 26 09:33 .esd/ what does the 'L' siguify? iv) Who can modify the permissions for 'ICE-unix