Hash table in a PowerShell is constructed with the Key-Value combination. Each key has its own value, so to get the value we need to refer the Key. We don’t need numeric indexing like Array to refer values.This is how the hash table looks like.Name       Value ... Read More

PowerShell alias can be created permanently by 2 methods below.a) Import / Export AliasTo export all the aliases, you need to use Export-Alias cmdlet. When you use this command it will ask you the path for the file to import.To export the newly created alias, you need to give alias ... Read More

Anyone can create a new alias which is a shortcut to another command. To create your own alias you need to use Set-Alias cmdlet. Here, we will create a new alias Edit, which will open a Notepad.exe. First, we will check if Edit alias exists or not.$Alias:EditAs this is going ... Read More

In PowerShell, you will get all the alias and their commands using Alias: drive as shown below.Dir Alias:OutputHere, Alias: is the drive but surprisingly you will not find it in your operating system. This is the virtual drive and there are other virtual drives as well. You can list all ... Read More

To resolve the command name from given alias, you need to use the below command.$Alias:AliasNameFor example, $Alias:dirOR$Alias:lsOutputGet-ChildItemThis means the above commands will provide the same result. For example, the output of the below commands would remain the same.Get-ChildItem C:\ Dir C:\ ls COutputYou can also use Get-Alias to resolve the ... Read More

In general, Alias means giving command to other names. In system admin life, they want short and familiar commands. PowerShell has verb-noun cmdlets that are very systematic but not practical in everyday life. So the System admins use PowerShell alias. For example - Dir or ls for the Get-ChildItem, cat or ... Read More

To get the list of all the commands installed in the system use the below command line. It will include all the Alias, Functions and Cmdlets.Get-CommandTo export them into the CSV file, Get-Command | Export-Csv D:\Temp\PowerShellcommands.csv - NoTypeInformationTo get only the cmdlets commands, Get-Command -CommandType CmdletSimilarly, you can get the ... Read More

If you have noticed, you can start notepad and calculator or other standard system utilities with the Windows Run or through the PowerShell console directly by typing just their names, but not the wordpad.exe, word, excel or any other application. It will throw an exception.For example, just type notepad.exe in ... Read More

You can use the PowerShell console to perform arithmetic operations, the same way the calculator does.To do the addition operation, 2+3Output − 5For complex, additional operations as well it is too quick.10024455 + 554668 + 9964455Output − 20543578Floating numbers operation, 5569899.65 + 554886.32Output − 6124785.97To perform subtract operation, 55564488556 - ... Read More

You can overwrite the Powershell alias by redefining it. For example, if the alias is created Edit for Notepad.exe and if you want to overwrite it with another program, say wordpad.exe then use the below command.We will overwrite the Edit alias cmdlet with Wordpad.exe using the Set-Alias command. When you ... Read More