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Reference
# Documentation
Update-Help # Update help system - to run as Administrator
help Test-Path # Get help on a command
help Test-Path -full # ... and on all options
Get-Command about_* # DOES NOT WORK
Get-Command -Verb Add
Get-Alias ps # ... Get-Process
Get-Alias -Definition Get-Process # ... ps
ps | Get-Member
# Frequent aliases
Get-Command # alias: gcm
Get-Process # alias: ps
Get-Help # alias: help
Get-Alias # alias: alias, gal
Get-Member # alias: gm
Tips
Measure execution time of a command
Measure-Command { dir }
Measure-Command { dir | Out-default} # To get output
Measure-Command { choco list }