Linux Essentials

GIDs under 500 (or 1000) are usually reserved for what kind of groups? Administrators System use...

Which command can be used to view the /var/log/wtmp file entries? uppasswd last uptime getpasswd...

The /etc/shadow file contains encrypted passwords. True or False? True False

The first line of this command displays how long the system has been running since being rebooted...

When using the sudo command to execute a command as the root user, the command prompts for the...

Sudo privileges allow users to execute commands as another user. True or False? True False

The last command displays reboot records… Only when issued by the root user After restarting the...

The “Epoch” began on January 1, 1970. True or False? True False

value of 0 in the “minimum” password aging field means the user cannot change their password. True...

Which command will display the groups that the root user belongs to? groups -a all group -r all -t...

To display the group(s) a user belongs to, use this command: whoami group all grep id

Usernames cannot be the same as group names. True or False? True False

What would an account with the UID 376 typically be used for? Temporary employees. System service...

Traditional UNIX systems allowed users to belong to how many groups? 256 10,000 65,000 16 1

Which command is used to display only the user’s primary group? man whoami who about id -g