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PowerShell has become something of an ace in the hole when it comes to performing commands on Windows. For years, Windows command line fans were restricted, but PowerShell emerged as a formidable alternative in 2006.
Microsoft created PowerShell as an interactive Command-Line Interface (CLI) and automation engine to aid in system configuration and administrative task automation.
This utility comes with its own command line and a programming language that is comparable to Perl. PowerShell was originally created to manage things on users’ computers.
Today PowerShell provides a rich environment in which users may perform and automate system management operations. Through a single software, the user can access resources from Active Directory to Exchange Server.
With Powershell core that allows the user to access:
Because PowerShell is now an open-source application, Linux and Unix users can now use this powerful platform. PowerShell is mostly used to automate administrative tasks. Rather than completing time-consuming and repetitive chores, the user can construct scripts and give commands, and PowerShell will take care of the rest. Hundreds of commands, known as cmdlets, can be customised by the user.
| Command name | Alias | Description |
| Set-Location | cd, chdir, sl | Sets the current working location to a specified location. |
| Get-Content | cat, gc, type | Gets the content of the item at the specified location. |
| Add-Content | ac | Adds content to the specified items, such as adding words to a file. |
| Set-Content | sc | Writes or replaces the content in an item with new content. |
| Copy-Item | copy, cp, cpi | Copies an item from one location to another. |
| Remove-Item | del, erase, rd, ri, rm, rmdir | Deletes the specified items. |
| Move-Item | mi, move, mv | Moves an item from one location to another. |
| Set-Item | si | Changes the value of an item to the value specified in the command. |
| New-Item | ni | Creates a new item. |
| Start-Job | sajb | Starts a Windows PowerShell background job. |
| Compare-Object | compare, dif | Compares two sets of objects. |
| Group-Object | group | Groups objects that contain the same value for specified properties. |
| Invoke-WebRequest | curl, iwr, wget | Gets content from a web page on the Internet. |
| Measure-Object | measure | Calculates the numeric properties of objects, and the characters, words, and lines in string objects, such as files … |
| Resolve-Path | rvpa | Resolves the wildcard characters in a path, and displays the path contents. |
| Resume-Job | rujb | Restarts a suspended job |
| Set-Variable | set, sv | Sets the value of a variable. Creates the variable if one with the requested name does not exist. |
| Show-Command | shcm | Creates Windows PowerShell commands in a graphical command window. |
| Sort-Object | sort | Sorts objects by property values. |
| Start-Service | sasv | Starts one or more stopped services. |
| Start-Process | saps, start | Starts one or more processes on the local computer. |
| Suspend-Job | sujb | Temporarily stops workflow jobs. |
| Wait-Job | wjb | Suppresses the command prompt until one or all of the Windows PowerShell background jobs running in the session are … |
| Where-Object | ?, where | Selects objects from a collection based on their property values. |
| Write-Output | echo, write | Sends the specified objects to the next command in the pipeline. If the command is the last command in the pipeline,… |
Corporate IT administrators that operate complicated IT management operations over huge corporate networks will benefit from PowerShell. Rather than manually compiling information on hundreds of different servers and services (which would take a long time), you can just execute a PowerShell script that will do it for you.
Users that have previous command-line familiarity will find PowerShell to be the most useful. You can launch a number of cmdlets, scripts, executables, and.NET classes using PowerShell. For the purposes of this essay, we’ll concentrate on cmdlets and scripts to assist you understand the essentials.
PowerShell is a better option to Command Prompt for many people. The reason for this is that it has more power. PowerShell employs cmdlets rather than commands, which is one of the most significant differences. Cmdlets give users administrative access to registry management and Windows Management Instrumentation. Command Prompt, on the other hand, is limited to much simpler commands.
PowerShell will take command prompt commands like ipconfig to cd, so there is some syntax overlap between the two systems. These, however, are referred to as aliases rather than cmdlets. Another significant distinction is that PowerShell is object-oriented. Instead of words, every item of data sent by a cmdlet is an object. This makes it easy for the user to find their way around.
You must first access the primary interface before we can get into the basics of utilizing PowerShell. If you have Windows 10, PowerShell 5 is already installed. PowerShell 4 is available to Windows 8 and 8.1 users, however Windows 7 users will need to install it via the.NET framework. PowerShell has two different user interfaces across all operating systems.
The Integrated Scripting Environment, which works as a comprehensive GUI for experienced users, is the more complex option. The PowerShell console is a basic alternative that gives a command-line for the user to enter their commands. Beginners should remain with the latter until they understand the basics of PowerShell.
Press WIN + R, type in powershell, press Ctrl+Shift+Enter. Click OK to run as Administrator.
A cmdlet is a single-function command in a nutshell. Cmdlets are entered into the command line in the same way that standard commands and utilities are. The main way to communicate with the CLI is using cmdlets.
Most cmdlets in PowerShell are written in C# and consist of instructions that perform a function and return a.NET object.
PowerShell has more than 200 cmdlets. Because the Windows PowerShell command prompt is case-insensitive, you can type these commands un either upper or lower case. The following are the most important cmdlets:
Get-Location — This command returns the current directory.
Get-Location — Retrieves the current directory.
Move-item – This command relocates a file.
Copy-item – is a command that copies a file to a new location.
Rename – item renaming Rename a file that already exists
New-Item – Create a new item.
To get list of all cmdlets(command lets)
PS C:\> Get-Command
It’s worth noting that Microsoft’s default settings prevent users from creating custom PowerShell cmdlets. You must modify the ExecutionPolicy from Restricted to RemoteSigned in order to use PowerShell cmdlets. Remote Signed allows you to execute your own scripts, but it prevents other users from running unsigned scripts.
Type the following PowerShell command to alter your Execution policy:
PS C:\> Set-ExecutionPolicy
Type the following command to switch to RemoteSigned:
PS C:> Set-ExecutionPolicy -ExecutionPolicy RemoteSigned
Make sure you’re logged in as an Administrator to be able to create a new execution policy.
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