Using whoami

18 May 2025 - jhunter

Sources

whoami /?

whoami

This handy command shows you show the current user is.

It is great for using in a script, mostly when I want to see what rights the current user has.

/user shows the user domain name and SID.
/groups show the groups to which a user is a member.
/upn only for a user in a domain, this option shows the user’s principal name.
/fo lets you specify the output format, including csv and table.

I like to get data into a powershell object a quickly as possible so I can select and sort objects the way I’d like.

For this task I convert the original whoami data into csv data; then I can convert the csv data into a powershell object with convertfrom-csv.

$whoami = whoami /user /fo csv | convertfrom-csv

Sometimes I want to see if the current user actually got added to some or other AD group.

$groups = whoami /groups /fo csv | convertfrom-csv