How can I find my User ID (UID) from terminal?

There are a couple of ways:

Using the id command you can get the real and effective user and group IDs.
```
 id -u <username>
```
If no username is supplied to id, it will default to the current user.
Using the shell variable. (It is not an environment variable, and thus is not available in env).
```
 echo $UID
```

Simply try

id

This will return your user ID, group ID, and all your groups.

Try also :

getent passwd username

This will display user id , group id and home directory .

Or:

grep username /etc/passwd

You can use id command.

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