PowerShell

Check for an open port

P> Test-NetConnection -ComputerName island.doodle.com -Port 443

Search files

PS C:\Users\MHan> Get-ChildItem -Recurse -Include *.* | Select-String "text to search for"

Check version

PS C:\Users\MHan> $PSversionTable

Name                           Value
----                           -----
PSVersion                      5.0.10586.1417
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.10586.1417
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Comparison with Linux commands

Action	Linux	PowerShell
Search for a string 1	az keyvault list | grep -i 'name";'	az keyvault list | findstr -i 'name":'
Search for a string 2 - current folder and subfolders	find . | xargs grep -si "searchtext"	Get-ChildItem -Path "." -Recurse -File | Select-String -Pattern "searchtext"
Search for a string 3 - only list names of files	find . | xargs grep -sil "searchtext"	Get-ChildItem -Path "." -Recurse -File | Select-String -Pattern "searchtext" -List | Select-Object -Property Path
Alias a command	alias g grep	new-alias grep findstr