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| # Provider allows to access some data storage (e.g. File system, registry, remote system, Active Directory)
# This concept might sound a bit abstract at first, but becomes very straight forward once you've used it for a while
# Provider once connected to the data storage, kind of "mounts" it like a network drive, allowing to browse and manage it
# Once the storage is mounted PowerShell creates so called PSDrive
# Let's review available providers
Get-Psprovider
# Let's review some PSDrives
Get-PSDrive
# A quick refresher how file system is organised: Drives, Folders, Files
# Since PowerShell connects to many different file data storages, it uses the generic term Item and specifies with type. Thus a folder is an Item of Type Directory, same as Registry key, it's best described in the help:
Help New-Item -full
#We have three main nouns we're working with:
- Item -managing files, folders, registry keys, certificates etc.
- ItemProperty - Get-ItemProperty c:\windows\explorer.exe | Format-List *
- ChildItem - lists content of the directory - Get-ChildItem c:\Windows
# If you've used other shells in the past
# You change directories by using Set-Location, however CD is an alias to the command
# And since it's PowerShell, you're not only limited to file system
# You can create a new directory with New-Item -Name Folder -Type Directory, however you can use MKDIR
# You can list a content of current directory with Get-ChildItem, however DIR, and LS are also available
# You can list a content of a file with Get-Content, or you can use CAT
# Let's put some of what we've seen into practice
# File operations
New-Item -Name Temp -ItemType Directory -Path c:\
Set-Location C:\Temp
new-item -Type File -Name file1 -Value "Kamil"
new-item -Type File -Name file2 -Value "Kamil"
Get-ChildItem
Get-Content file2
#Certificate
Get-ChildItem Cert:\CurrentUser\My\
# Exercises
1. Create a folder in root of C: with the name of PowerShell
2. Create a file inside the folder with the name of your choice and no content
3. Retrieve all items from Env: drive
4. Check the version of Notepad.exe in Windows directory
5. Discover current Windows build version by registry property: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
```
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