PowerShell One-liners

# Creating an etags table
Get-ChildItem -Path "*.[ch]" -Recurse | Foreach-Object { etags.exe --append $_.FullName }

# Count the lines of output (for example, from git-log)
(git log --oneline abcdefgh..ijklmnop | Measure-Object -lines).Lines

# Filtering output from a command (e.g. Get-ChildItem) using regex.
Get-ChildItem -Recurse -Path . | Foreach-Object { if ($_.FullName -cmatch "Test") { Write-Host $_.FullName } }

# Creating a symlink
New-Item -Path C:\Path\to\link -ItemType SymbolicLink -Value C:\Path\to\target

# Downloading a file
Invoke-WebRequest https://example.com/releases/app.tar.gz -OutFile .\app.tar.gz

# Extracting a tar file (surprisingly, it's the same):
tar -xzvf .\app.tar.gz

Installing Windows Terminal

Without access to the Windows Store, we need to jump through a couple of hoops. An .msixbundle can be downloaded from the Releases section of the official Microsoft GitHub account. We can then install this file in PowerShell:

PS> Add-AppxPackage .\Microsoft.WindowsTerminal.msixbundle

I experienced an error related to a missing framework: Microsoft.UI.Xaml.2.8. I downloaded this package explicitly from NuGet. The downloaded file can be opened with 7zip or similar, and contains an appx file in the path .\tools\AppX\x64\Release. Extract this file to somewhere and install it using Add-AppxPackage. Ideally, all dependencies are now resolved and we can repeat the above to install Windows Terminal.