moreaki@0xdeadbead:~$ ls -ald /etc/
drwxr-xr-x 128 root root 12288 Aug 16 13:51 /etc/
moreaki@0xdeadbead:~$ id
uid=1000(moreaki) gid=1000(moreaki) groups=1000(moreaki),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),120(lpadmin),131(lxd),132(sambashare)
moreaki@0xdeadbead:~$ ls -ald /etc/
drwxr-xr-x 128 root root 12288 Aug 16 13:51 /etc/
moreaki@0xdeadbead:~$ sudo chmod 0777 /etc/
[sudo] password for moreaki:
moreaki@0xdeadbead:~$ ls -ald /etc/
drwxrwxrwx 128 root root 12288 Aug 16 13:51 /etc/
moreaki@0xdeadbead:~$ touch /etc/myfile.txt
moreaki@0xdeadbead:~$ ls -al /etc/myfile.txt
-rw-rw-r-- 1 moreaki moreaki 0 Aug 16 13:53 /etc/myfile.txt
moreaki@0xdeadbead:~$ rm /etc/myfile.txt
moreaki@0xdeadbead:~$ sudo chmod 0755 /etc/
moreaki@0xdeadbead:~$ ls -ald /etc/
drwxr-xr-x 128 root root 12288 Aug 16 13:53 /etc/