> For the complete documentation index, see [llms.txt](https://hazmiae.gitbook.io/writeups/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hazmiae.gitbook.io/writeups/underthewire-century.md).
# 🐈⬛ 🐈⬛ UnderTheWire Century
### Century 0-1
**century**
### Century 1-2
Challenge ask us to find build verison of PowerShell instance.
According to this [microsoft module](https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_powershell_editions?view=powershell-7.2), we can list the detail of our PS using `$PSVersionTable` command.
**10.0.14393.4583**
### Century 2-3
`Invoke-WebRequest` has the same function as wget command according to .
**invoke-webrequest443**
### Century 3-4
We can use `(Get-ChildItem | Measure-Object)`.Count to get the total number of files in a directory.
* Get-ChildItem = Equivalent to dir , get the items and child items in a folder or registry key.
* Measure-Object = measure the property of the command. There are various measurement parameters are available. For example, Average, Count, sum, maximum, minimum.
* .Count = to specify output for count only.
**123**
### Century 4-5
CD to the directory either by pressing tab or specify directory name using '\file'.
**5548**
### Century 5-6
According to [PS module](https://docs.microsoft.com/en-us/powershell/module/activedirectory/get-addomain?view=windowsserver2022-ps), we can use `Get-ADDomain -Current LoggedOnUser` to get the domain information for the domain of the currently logged on user.
**underthewire3347**
### Century 6-7
Use option -Directory to only get folders. `(Get-ChildItem -Directory | Measure-Object).Count`
**197**
### Century 7-8
Use gci with -Recurse to repeat the command in all subfolder in the directory and specify the file name with -Filter.
**7points**
### Century 8-9
We can use `Get-Unique` which is the equivalent of uniq to get the non repeated words in the file. Then we use `Measure-Object` to count the unique entries.
**696**
### Century 9-10
We use [GetContent](https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.management/get-content?view=powershell-7.2) with [-Delimiter](https://www.mssqltips.com/sqlservertip/5427/parsing-strings-from-delimiters-in-powershell/) " " to split the words into an array and find the 161st word by using Select -Index 160.( Array starts from 0).
pierid
### Century 10-11
According to the answer from StackOverFlow, we can use `Get-WmiObject` cmdlet to get more details and information of a windows 32 service. Then we can use findstr [wuauserv](https://www.windows-commandline.com/start-stop-windows-update-service/)(windows update service) which is the equivalent of grep to get the details of windows update service.
**windowsupdates110**
### Century 11-12
We can use gci -recurse -hidden 2>$null to find any hidden file in a directory.
* hidden = find file with only hidden property.
* 2>$null = discard error.
**secret\_sauce**
### Century 12-13
We use [Get-ADDomainController](https://docs.microsoft.com/en-us/powershell/module/activedirectory/get-addomaincontroller?view=windowsserver2022-ps) to get Active Directory domain controllers name.
After finding the domain controller name, we can use `Get-ADComputer -Identity "UTW" -Properties * | Select Name, Description` to get the description of our AD name.
* Get-ADComputer = get active directory computer details.
* -Identity "UTW" = specify our AD name.
* -Properties \* = list all possible properties.
* Select Name, Description = filter out the only parameter we want.
**i\_authenticate\_things**
### Century 13-14
Use getcontent with Measure-Object -Word to only get words amount.
**755**
### Century 14-15
Use getcontent with -Delimiter to split words into array. Then use findstr ^polo (^to specify whole word only) to grep polo. Lastly use count to count the number of polo words in the file.
**153**