1. List the files and directories. $ ls -lah total 52K drwxrwxrwt 11 root root 4.0K Nov 4 03:52 . drwxr-xr-x 25 root root 4.0K Oct 6 03:54 .. srwxr-xr-x 1 george george 0 Oct 8 00:47 .dguardianipc srwxr-xr-x 1 george george 0 Oct 8 00:47 .dguardianurlipc -rw-r--r-- 1 root root 0 Nov 4 03:52 file1 -rw-r--r-- 1 gopher gopher 0 Nov 4 03:52 file2 -rw-r--r-- 1 gopher gopher 0 Nov 4 03:52 file3 -rw-r--r-- 1 gopher gopher 0 Nov 4 03:52 file4 -rw-r--r-- 1 gopher gopher 0 Nov 4 03:52 file5 -rw-r--r-- 1 root root 0 Nov 4 03:52 file6 -rw-r--r-- 1 root root 0 Nov 4 03:52 file7 drwxrwxrwt 2 root root 4.0K Oct 1 07:55 .font-unix drwxrwxrwt 2 root root 4.0K Oct 1 07:55 .ICE-unix drwxr-xr-x 2 root root 4.0K Nov 4 03:43 test1 drwxr-xr-x 2 root root 4.0K Nov 4 03:51 test2 drwxr-xr-x 2 root root 4.0K Nov 4 03:43 test[2-7] drwxr-xr-x 2 root root 4.0K Nov 4 03:43 test2-7 drwxr-xr-x 2 george george 4.0K N...