How to create a new file in Powershell?

new-item keyword creates a new file in the filesystem.  The type of item new item creates depends on where the item is being created.  For example, new item can also create registry keys and entries if used in the registry.

Type the following command in  to create a new file in the current path:

ni {filename.extension}

 

The above is the alias for the following command…

new-item {filename.extension}

 

Example

ni fun.txt

 

Parameters can also be used with new item.

The following creates a file in the current path with some content:

ni -n fun.txt -p . -it f -v 'this is some silly text'

 

In the above example we have added the  -name, -path and -itemtype parameters with their default values.   Omitting these will generate the same result.

ni fun.txt -v 'this is some silly text'

 

If you want to overwrite an existing file use the -force or -f parameter:

ni fun.txt -v 'this is some silly text' -f

 

Create multiple files in the current directory:

ni -it f -p 'file.txt', 'fun.txt'

 

Create multiple files in the c:/ root and things directory

ni -it f -p 'c:\file.txt', 'c:\things\fun.txt'

 

Creating Directories

You can create a new directory instead of mkdir or md by using the new item command and setting the item type as directory.

ni fun -it d

 

Create a new directory in the c root:

ni -n fun -it d -p c:\

 

Create multiple directories in the current path:

ni -it d -p 'fun', 'silly'

 

Create multiple directories in the c:/ root and things directory

ni -it d -p 'c:\folder', 'c:\things\fun'

 

The following table shows the parameters and it’s alias

Parameter Alias Example Description
-name
-n or no parameter
ni fun.txt
Specify the new item’s name
-itemtype
-it
-it d or -it dir or -it directory
-it f or -it file
Specify the type of item to create. Creates file by default.
-force
-f
-f
Overwrite existing file.
-value
-v
-v 'Some file content...'
Write content of file
-path
-p
-p c:\
Path of where the new item should be created

Some commands that is useful with the ni command:

lsGet-ChildItem, lists files and directories of the current working directory.  eg ls

gcGet-Content, view the contents of a file eg. gc fun.txt

mdmkdir, make directory eg. md mynewdirectory

rmRemove-Item, remove directory or file

 

Official Microsoft Docs