12/21/2023 0 Comments File list smart batch file renamerI quickly spotted another button that said “ 60-second Tutorials” with some amusing scenarios and I felt better. At first glance, I thought maybe the program was too much for me as the opening line read “ Looking for the easy way to batch rename files and folders by the million?” Uhm…no, I only had several hundred photos to rename. The InterfaceĪfter doing more research, I found an application called RenameMaestro. I wanted a program I wouldn’t have to relearn each time I needed to use it. I know that probably sounds strange after my comment about writing a DOS batch file. I first tried other free ones and found them OK, but not easy. I was correct on one hand as there are many file renaming programs. My second thought was the cold medicine I was taking was interfering with my thinking as someone has surely tackled this problem using Windows. My first thought was I could probably write a DOS batch program using the RENAME command. Does the example picture below look familiar to you? PinĪfter looking at the filenames, I figured I needed a way to rename files. The file names certainly didn’t provide a clue as to whether the subject matter was my Oregon trip, wine labels, twins, or something else. I ended up with an array of files that seemed identical but varied by date. I transferred them to my PC, as I wanted to use some on a Facebook fan page. The drawback is that you can't use the history to get back what you typed inside the loop.The problem I had was I took too many photos, which were stored on my phone. sas% foreach f ( /Users/sas/some_files* ) well, you know, that kind of thing.įoreach is really great when you don't have to modify the items like in the example above, for example if you want to batch run a program that doesn't take multiple files as input. And of course you won't have the time to read the man pages or they won't be installed or. I think this approach is a little more transparent than the awk/sed thing, especially since according to Murphy you'll never remember the exact syntax when you need it. That's when the loop is actually executed. You get out of this with "end" on a line by itself. Note that the "foreach ->" prefix is printed by the shell after you hit return at the end of the "foreach" line. Let me submit the csh version with "foreach": Ok, let's start the big "Here's my way" contest. The output showing what will happen looks like this example: I also named the script "rename" and run it like this example: When it comes to renaming files with Perl expressions, it's vital to see if your expression does what you think it does before it does it :-) (I often have to adjust the expression until I get it just right). Unlike Larry's, mine shows a list of changes that are to be made and prompts the users to confirm it's okay to proceed. I wrote a similar Perl script for myself. To use this on your own files, you'll need to replace the references to filenames and items to be replaced in both the "ls" and "sed" portions of the script. Dierdre points out that this is an especially nice way to do it, since you get to see what will happen before you commit to it! I happen to agree with that logic completely! So to rename all those "foo*.jpg" files into "bar*.jpg" files, type: ls foo*.jpg | awk '' | sed 's/foo/bar/2' | /bin/shThat should do the trick. This first version of the command is "proof of concept" it will output what will happen, without actually doing it. Once there, we'll run a 'test' before actually change any names. Open a terminal, and "cd" your way to the directory of interest (or just drag the folder you want to work with onto the terminal icon in the dock it will open in that directory). However, there's a cool way to accomplish the same result with a (more complex) command line argument. However, this doesn't work right since the shell expands each argument before the execution occurs. If you want to batch rename a bunch of files (say "foo*.jpg" to "bar*.jpg"), you might think you could just do "mv foo*.jpg bar*.jpg" in the Terminal. This one was posted to the X4U mailing list by Dierdre M., and I think it's an incredibly useful tip, so I'm posting it here!
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