Then, open up Windows PowerShell and navigate to the directory with the CD command.ĭepending on how you want to rename the files there are a few different techniques: Changing the File Extension of all. To get started I suggest copying all the files you need to rename to a separate directory. The two PowerShell commands needed for batch file renaming are dir (which is an alias for get-childitem) and rename-item. The trick is to pipe the output of one command into another command allowing you to connect the functionality to produce a useful outcome. Windows PowerShell, which is included in Windows starting with Vista and 2008 Server and available for XP, provides the raw tools to allow you to perform batch file renames. This functionality works well for basic files but does not provide any flexibility in exactly how the files are numbered and also does not allow the file extension to be changed. All of the selected files will be renamed with the name you provided and a number. Your command suggestions were excellent, but didn't answer my question, whereas after about 4 more hours, this did: Potentially you could add a P.Microsoft included a batch rename feature in the latest version of Windows allowing you to select multiple files, right click on one and select rename. My requirement was actually to remove garbage/octal chars that had appeared via bad Input file text. I came across it via Google search for batch renaming files. It's easily overlooked, but once you understand how the shell is parsing things before they get to the command (ie, it parses * into a list of files in the current directory), a lot of things will fall into place. The command does not discard the quotes - it treats them as part of the filename, and therefore fails. In the second case, the command gets parsed just once by the shell, which passes these args to the command: Which then gets parsed again by the shell for the | sh to finally pass the command these args (where is the expansion of $i): In the first example, the shell is parses the occurances of \" before giving them to echo, which gives this (which is actually the easy way to do this): It's to do with how the shell does its processing before it passes the args to the command. Thanks Kurt! Here's a link for basename from gnu.org. The classic basename(1) tool works very nicely without allįor f in *htm do mv $f `basename $f htm`html done" Reader Kurt sends this reply about the tool "basename": mp3 and get rid of those ghastlyįor e in * do mv "$e" "`echo $e | sed -e 's/\ /_/g'`.mp3" doneĪnd I reply: Thanks so much Tony. Lambley has a solution to fixing the "spaces in names" problem. I found a script that will add extensions and prefixes, as well as one that Take a look at /Applications/AppleScript/Example Scripts/Finder Scripts. At least after the developer tools have been installed I'm Just as I was getting the hang of it, and looking to make it a tidyĪppleScript, I discovered that Apple already provided many of those I found your page "" when I searched on "batch rename" found it useful. Congrats on finding the solution to your problem so well! Perhaps your insight will help others! The command line still manages to mystify me utterly. I don't understand how echoing and piping it to the shell is any Well, the reason is because it doesn't work. The \'s in the shell script the spaces in the file names cause a problem. That doesn't work because of the 's in the file names. rw-r-r- 1 toph staff 5264433 Apr 18 09:43 Wearing and Tearing rw-r-r- 1 toph staff 4131343 Apr 18 09:43 I Can't Quit You Babe I have Mac OS X, and I need to rename a directory with files like: Visitor Chris Hancock / writes in with a question, and answers it himself html files to php for file in *.html do mv $file `echo $file | sed 's/\(.*\.\)html/\1php/'` done More Notes shtml for file in *.html do mv $file `echo $file | sed 's/\(.*\.\)html/\1shtml/'` done #change. htm for file in *.html do mv $file `echo $file | sed 's/\(.*\.\)html/\1htm/'` done #change. html for file in *.htm do mv $file `echo $file | sed 's/\(.*\.\)htm/\1html/'` done # change. But as with any batch file changing, you are advised to use them with caution. They have been used on FreeBSD, Linux, and MacOSX with success. These are very powerful command line tools. Originally created 11/1999 Moved to Lab 12/2001 Updated Batch File Rename By File Extension in Unix These are one-liners which batch rename files meeting a certain criteria under unix
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