Posts (page 47)
-
2 min readIn PowerShell, you can expand a variable by placing a dollar sign ($) in front of the variable name. This tells PowerShell to replace the variable name with its value. For example, if you have a variable named $num with a value of 5, you can expand it by typing $num in a command and PowerShell will replace it with 5. This is useful for including variable values in strings, calculations, or any other context where you need to use the variable's value.
-
3 min readTo copy folders to a specific folder in PowerShell, you can use the Copy-Item cmdlet. First, navigate to the directory where the folder you want to copy is located using the Set-Location cmdlet.
-
7 min readTo write a streaming function in PowerShell, you can use the Process block in your function. This block allows you to process each item in the pipeline as it becomes available, rather than waiting for the entire input to be collected before processing it.
-
5 min readTo bulk rename files in PowerShell, you can use the Rename-Item cmdlet.First, navigate to the directory containing the files you want to rename using the Set-Location cmdlet.You can use various parameters with the Rename-Item cmdlet to rename files based on specific criteria. For example, you can use the -NewName parameter to specify the new name for the files and use wildcards to rename multiple files at once.
-
5 min readIn PowerShell, you can ignore null values in a foreach loop by using an if statement to check for null values before processing the item. You can use the -ne operator to check if the item is not equal to $null before performing any operations on it. This way, you can skip over null values and only process non-null values in the loop.
-
3 min readTo load PowerShell functions on-demand, you can use the Import-Module command in your script or session to import the module containing the functions you want to use. By importing the module, you can access the functions defined within it without loading the entire module at the beginning of your script or session. This allows you to save resources and only load the functions when they are needed.
-
3 min readTo set the file name to default when downloading with PowerShell, you can use the -OutFile parameter followed by the desired file name. If you do not specify a file name, PowerShell will default to using the original file name from the download URL. This allows you to retain the original file name without having to manually specify it each time you download a file using PowerShell.[rating:69124b1f-7719-4c02-b18b-990e9c9271ea]How to default file name for downloads in PowerShell.
-
5 min readTo access specific columns from a CSV file in PowerShell, you can use the Import-Csv cmdlet to read the contents of the file into an object variable. You can then use dot notation to access the specific column(s) you want by referencing the column name as a property of the object variable. For example, if you have a CSV file with columns named "Name", "Age", and "Location", you can access the "Name" column by using $csvObject.
-
4 min readTo get alternating characters from a string in PowerShell, you can use a simple loop and index through the characters of the string. You can access characters in a string by using square brackets and the index of the character you want. Here is an example code snippet that demonstrates how to get alternating characters from a string in PowerShell: $string = "Hello World" $output = "" for ($i = 0; $i -lt $string.
-
5 min readTo check if an associative array is empty in PowerShell, you can use the following approach:Use the Count property of the associative array to check if it contains any elements. If the Count property returns 0, then the associative array is empty.Here is an example code snippet to demonstrate this: $associativeArray = @{} if ($associativeArray.
-
6 min readTo split an XML file into smaller files using PowerShell, you can follow these steps:First, load the XML file into a PowerShell variable using the [xml] type accelerator. This will allow you to easily access and manipulate the XML content.Next, determine how you want to divide the XML file into smaller files. This could be based on a specific element in the XML (such as splitting the file into smaller files based on a certain tag) or based on a specific size limit for each file.
-
3 min readTo split a string and rename files in PowerShell, you can use the Split method to separate the string into multiple parts based on a specified delimiter. You can then use the Rename-Item cmdlet to rename the files accordingly. First, you need to read the file names into an array using Get-ChildItem, then use the ForEach-Object cmdlet to iterate over each file and split the file name using the Split method. Finally, rename the file using the Rename-Item cmdlet with the new file name.