Which command will display the UID GID and groups your current user belongs to about ID who whoami?

Q: Which command would allow a user to execute commands as root?

On Unix-like operating systems, the sudo command (superuser do) allows a user with proper permissions to execute a command as another user. By default, sudo executes commands as root.

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Which command will display the UID GID and groups your current user belongs to ID who About Whoami?
Which command will display the UID?
Which command will display the users that are currently logged into the system?
Which commands can display the groups of which a user is a member Select all that apply?
How do I find my user ID?
How can I get group name from GID?
What is the default user for the su command?
Which command allows you to find out which group has a GID of 100?
What is the output of who command?
What are the two files that contain user account information?
Which is option for the usermod command can be used to specify a group ID?
Which is the following options for the useradd command?
Is the UID the same as the GID?
Is a GID associated with a group name?
Which command will display the UID ID and groups your current user belongs to?
Which command will display the user that are currently logged in to the system?
What command would reveal the most information about groups that a user name Bob belongs to?
Which command would allow a user to execute commands as root?

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id command in Linux is used to find out user and group names and numeric ID’s (UID or group ID) of the current user or any other user in the server. This command is useful to find out the following information as listed below:

User name and real user id.
Find out the specific Users UID.
Show the UID and all groups associated with a user.
List out all the groups a user belongs to.
Display security context of the current user.

Synopsis:

id [OPTION]… [USER]

Options:

-g : Print only the effective group id.
-G : Print all Group ID’s.
-n : Prints name instead of number.
-r : Prints real ID instead of numbers.
-u : Prints only the effective user ID.
–help : Display help messages and exit.
–version: Display the version information and exit.

Note: Without any OPTION it prints every set of identified information i.e. numeric ID’s.

Examples:

To print your own id without any Options:
```
id
```
The output shows the ID of current user UID and GID.
To find a specific users id: Now assume that we have a user named master, to find his UID we will use the command:
```
id -u master
```
To find a specific users GID: Again assuming to find GID of master, we will use the command:
```
id -g master
```
To find out UID and all groups associated with a username: In this case we will use the user “master” to find UID and all groups associated with it, use command:
```
id master
```
To find out all the groups a user belongs to: Displaying the UID and all groups a user “master” belongs to:
```
id -G master
```
To display a name instead of numbers: By default the id command shows us the UDI and GID in numbers which a user may not understand, with use of -n option with -u, -g and -G, use command(s)
```
id -ng master 
or
id -nu master
or
id -nG master
```
To display real id instead of effective id: To show the real id with the use of -r option with -g, -u and -G, use command(s):
```
id -r -g master
id -r -u master
id -r -G master
```

Which command will display the UID GID and groups your current user belongs to ID who About Whoami?
Which command will display the UID?
Which command will display the users that are currently logged into the system?
Which commands can display the groups of which a user is a member Select all that apply?
How do I find my user ID?
How can I get group name from GID?
What is the default user for the su command?
Which command allows you to find out which group has a GID of 100?
What is the output of who command?
What are the two files that contain user account information?
Which is option for the usermod command can be used to specify a group ID?
Which is the following options for the useradd command?
Is the UID the same as the GID?
Is a GID associated with a group name?

Which command will display the UID GID and groups your current user belongs to ID who About Whoami?

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

Which command will display the UID?

id command in Linux is used to find out user and group names and numeric ID's (UID or group ID) of the current user or any other user in the server. This command is useful to find out the following information as listed below: User name and real user id. Find out the specific Users UID.

Which command will display the users that are currently logged into the system?

users command is used to print the user name who are all currently logged in the current host. It is one of the command don't have any option other than help and version. If the user using, 'n' number of terminals, the user name will shown in 'n' number of time in the output.

Which commands can display the groups of which a user is a member Select all that apply?

compgen: compgen is bash built-in command and it will show all available commands for the user. members: List members of a group. /etc/group file: Also, we can grep the corresponding user's groups from the /etc/group file.

How do I find my user ID?

There are a couple of ways:

Using the id command you can get the real and effective user and group IDs. id -u If no username is supplied to id , it will default to the current user.
Using the enviroment variable. echo $UID.

17-May-2014

How can I get group name from GID?

You can lookup a group by name or gid using the getent command. In the case that getent is not present.

What is the default user for the su command?

root user The su (short for substitute or switch user) utility allows you to run commands with another user's privileges, by default the root user.

Which command allows you to find out which group has a GID of 100?

more /etc/group | grep 100 Which command allows you to find out which group has a GID of 100? You just studied 29 terms!

What is the output of who command?

Explanation: who command output the details of the users who are currently logged in to the system. The output includes username, terminal name (on which they are logged in), date and time of their login etc. 11.

What are the two files that contain user account information?

The /etc/passwd file stores essential information, which required during login. In other words, it stores user account information. The /etc/passwd is a plain text file. It contains a list of the system's accounts, giving for each account some useful information like user ID, group ID, home directory, shell, and more.

Which is option for the usermod command can be used to specify a group ID?

Which option for the usermod command can be used to specify a user’s group ID (either primary or secondary)? For non-root users, the passwd command can only be used to change the password of the user running the command. True or False? The groupmod command can be used to change a group name.

Which is the following options for the useradd command?

Which of the following options for the useradd command allows root to specify supplementary groups the user will be a member of? On a system that does not use UPG, the useradd command will also create a user group. For example, user bob, group bob. True or False?

Is the UID the same as the GID?

On a system that uses UPG, the UID must not be the same as the GID.. True or False? The usermod command can be used to unlock a users account with the following option.

Is a GID associated with a group name?

A GID is associated with a group name. True or False? A user can belong to… Sudo privileges can be used to specify which user can use the sudo command to execute commands as other users. True or False?

Which command will display the UID ID and groups your current user belongs to?

id command in Linux is used to find out user and group names and numeric ID's (UID or group ID) of the current user or any other user in the server. This command is useful to find out the following information as listed below: User name and real user id. Find out the specific Users UID.

Which command will display the user that are currently logged in to the system?

The who command is used to display the users logged into the system. The who command related to the w command that is used to display information about the users currently on the machine and their processes.

What command would reveal the most information about groups that a user name Bob belongs to?

In the command tar -cvjf foo.

Which command would allow a user to execute commands as root?

On Unix-like operating systems, the sudo command ("superuser do") allows a user with proper permissions to execute a command as another user. By default, sudo executes commands as root.