drwxr-xr-x 3 root  root        4096 Sep 17 16:44 ..                             drwx------ 3 admin admin       4096 Sep 17 17:15 .ansible                       -rw-r--r-- 1 admin admin        220 Aug  4  2021 .bash_logout                   -rw-r--r-- 1 admin admin       3526 Aug  4  2021 .bashrc                        drwxr-xr-x 3 admin admin       4096 Jan  2 13:17 .config                        -rw-r--r-- 1 admin admin        807 Aug  4  2021 .profile                       drwx------ 2 admin admin       4096 Sep 17 16:44 .ssh                           drwxr-xr-x 2 admin root        4096 Sep 17 17:28 agent                          drwxr-xr-x 2 admin root        4096 Jan  2 13:20 data                           -rw-r--r-- 1 root  root  5368709120 Sep 17 17:28 datafile                       -rwxr-xr-x 1 admin root     2207109 Sep 17 17:28 kihei                          -rw-r--r-- 1 admin admin          0 Jan  2 13:19 newdatafile                    admin@i-0d2fffbb2efd15ca7:~$ touch data/newdatafile                             admin@i-0d2fffbb2efd15ca7:~$ touch data/newdatafile                             admin@i-0d2fffbb2efd15ca7:~$ c                                                  

usage: sudo [-AbEHknPS] [-r role] [-t type] [-C num] [-D directory] [-g group] [            [<command>]                                                         usage: sudo -e [-AknS] [-r role] [-t type] [-C num] [-D directory] [-g group] [-admin@i-02474f300d2196640:~$ sudo su -                                                                                                                          We trust you have received the usual lecture from the local System              Administrator. It usually boils down to these three things:                                                                                                         #1) Respect the privacy of others.                                              #2) Think before you type.                                                      #3) With great power comes great responsibility.                                                                                                            [sudo] password for admin:                                                      sudo: a password is required                                                    admin@i-02474f300d2196640:~$ curl localh                                        

-rwxrwx--- 1 root  root   360 Sep 24  2023 webserver.py                         admin@i-03a2a2fdd7cb0df14:~$ ls /proc/571/                                      arch_status         cmdline             environ             limits                         root                smaps_rollup        task/                        attr/               comm                exe                 loginuid            _adj       sched               stack               timens_offsets               autogroup           coredump_filter     fd/                 map_files/                     schedstat           stat                timers                       auxv                cpu_resctrl_groups  fdinfo/             maps                te         sessionid           statm               timerslack_ns                cgroup              cpuset              gid_map             mem                 ty         setgroups           status              uid_map                      clear_refs          cwd                 io                  mountinfo           p          smaps               syscall             wchan                        admin@i-03a2a2fdd7cb0df14:~$ ls /proc/571/fd                                    

admin@i-0b94011fc9b466a01:~$ rm datafile                                        rm: remove write-protected regular file 'datafile'? y                           admin@i-0b94011fc9b466a01:~$ ls                                                 agent  data  kihei                                                              admin@i-0b94011fc9b466a01:~$ ./kihei                                            Done.                                                                           admin@i-0b94011fc9b466a01:~$ tou