Just keep in mind if you have millions+ files/items as it may take awhile to iterate all of them before any renames are carried out. Putting $() around a Get-ChildItem ensures that all of the currently existing files get returned first and are then piped into Rename-Item, rather than piped in dynamically without the subexpression operator. Instead of 'dir |' I can use: dir | where-object -filterscript 'dir -recurse' outputs all the files, folders and sub-folders. Share Improve this answer edited at 17:12 raven 17. And if you prefer sticking with your keyboard, you can just use your arrow keys (or start typing the file name) to select a file and then hit F2 to select the file name.
Right-click the file and then select Rename on the context menu. Notes: 'dir' is an alias of 'Get-ChildItem'. In the folder press shift+right-click : select 'open command-window here' for a in (.) do ren 'a' 'prefix - a' If there are a lot of files, it might be good to add an 'echo off' command before this and an 'echo on' command at the end. Click to select file and then click the name of the selected file. Using '|' will pipeline the output of 'dir' for the command that follows. You can use 'dir' to see all the files in the folder. Notice: address must incorporate quotes "" if there are spaces involved. Type: "PowerShell" and open the 'Windows PowerShell' command window.
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