blauwal@blauwal-ThinkPad-L540:~$ cd /var/log
blauwal@blauwal-ThinkPad-L540:/var/log$ ls
alternatives.log        boot.log.2      dpkg.log.9.gz      sysstat
alternatives.log.1      boot.log.3      faillog            teamviewer15
alternatives.log.10.gz  boot.log.4      firewalld          tor
alternatives.log.11.gz  boot.log.5      fontconfig.log     ubuntu-advantage-license-check.log
alternatives.log.12.gz  boot.log.6      gpu-manager.log    ubuntu-advantage.log
alternatives.log.2.gz   boot.log.7      hp                 ubuntu-advantage.log.1
alternatives.log.3.gz   bootstrap.log   installer          ubuntu-advantage.log.2.gz
alternatives.log.4.gz   btmp            ipp-usb            ubuntu-advantage.log.3.gz
alternatives.log.5.gz   btmp.1          journal            ubuntu-advantage.log.4.gz
alternatives.log.6.gz   cups            kern.log           ubuntu-advantage.log.5.gz
alternatives.log.7.gz   cups-browsed    kern.log.1         ubuntu-advantage.log.6.gz
alternatives.log.8.gz   dist-upgrade    kern.log.2.gz      ubuntu-advantage-timer.log
alternatives.log.9.gz   dmesg           kern.log.3.gz      ubuntu-advantage-timer.log.1
apparmor                dmesg.0         kern.log.4.gz      ubuntu-advantage-timer.log.2.gz
apport.log              dmesg.1.gz      lastlog            ubuntu-advantage-timer.log.3.gz
apport.log.1            dmesg.2.gz      mail.err           ubuntu-advantage-timer.log.4.gz
apport.log.2.gz         dmesg.3.gz      mail.log           ubuntu-advantage-timer.log.5.gz
apport.log.3.gz         dmesg.4.gz      openvpn            ubuntu-advantage-timer.log.6.gz
apport.log.4.gz         dpkg.log        private            unattended-upgrades
apport.log.5.gz         dpkg.log.1      README             upgrade
apport.log.6.gz         dpkg.log.10.gz  samba              wtmp
apport.log.7.gz         dpkg.log.11.gz  sddm.log           wtmp.1
apt                     dpkg.log.12.gz  speech-dispatcher  wvdialconf.log
auth.log                dpkg.log.2.gz   syslog             Xorg.0.log
auth.log.1              dpkg.log.3.gz   syslog.1           Xorg.0.log.old
auth.log.2.gz           dpkg.log.4.gz   syslog.2.gz        Xorg.1.log
auth.log.3.gz           dpkg.log.5.gz   syslog.3.gz        Xorg.1.log.old
auth.log.4.gz           dpkg.log.6.gz   syslog.4.gz
boot.log                dpkg.log.7.gz   syslog.6.gz
boot.log.1              dpkg.log.8.gz   syslog.7.gz
blauwal@blauwal-ThinkPad-L540:/var/log$