frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

Open in hackernews

Show HN: F2 – Cross-Platform CLI Batch Renaming Tool

https://github.com/ayoisaiah/f2
89•ayoisaiah•7h ago
Hey HN!

I'm excited to share f2, a command-line tool I built for fast and flexible bulk renaming of files. It's cross-platform (Linux, macOS, Windows), executes a dry-run by default, supports undo, and provides great flexibility in file renaming with several built-in variables and Exiftool integration.

I hope you find it useful!

Comments

simonw•7h ago
I really like your CLI design here, clearly extremely well thought out, lots of great taste on display here: https://f2.freshman.tech/guide/tutorial

The EXIF stuff to create folders based on the date photos were taken is fantastic! https://f2.freshman.tech/guide/organizing-image-library

This tool solves a problem that I face all the time, I am definitely going to be using this often.

ayoisaiah•57m ago
Thanks a lot Simon! I'm really thrilled to hear it's hitting the mark for you :)
otterpro•7h ago
Wow, it can integrate with exiftool. I use exiftool to rename photo files, but I think f2 offers more flexible renaming features.
nine_k•6h ago
Dry-run by default! Use of metadata like EXIF! Undo!

Here's some great product and UX chops, not just coding chops.

bsnnkv•6h ago
Incredible name choice here - it's very rare that I get this feeling associating a new project with its name. I'm filled with feelings that touch on nostalgia, utility, UX design history and computing heritage when I hear the name F2 associated with a batch renaming tool. Great job!
ayoisaiah•1h ago
Thank you! I knew I had a winner the moment it popped into my head :)
nine_k•13m ago
It's indeed a name that immediately rings the right bell, without being an ungoogleable common noun or verb. Kudos.

(Though for those of us who cut their teeth on tools like Norton Commander on the original IBM PC, the association would be with F6.)

sorenjan•5h ago
For photos, I'm guessing you can use Exiftool's built in geolocation feature to add the city and country first.

https://exiftool.org/geolocation.html

devrandoom•4h ago
Wow, this goes instantly to my toolbox. Thanks for writing this and sharing it!

It only happens a few times a year that I need to batch rename. Buy when I do my adrenaline levels go up by about two espressos.

sandreas•4h ago
Awesome tool, thanks for sharing. One feature I would love to see on renaming tools is the following:

  -A - Sample of the of the ACTUAL file name
  -B - Sample of the desired filename
e.g.

  f2 -A 001.pdf -B 001_renamed.pdf
and this would automatically determine that every file with this "pattern" (001) should get the renamed prefix, so:

  001.pdf => 001_renamed.pdf
  002.pdf => 002_renamed.pdf
  ...
Sounds weird, but there once was a tool written in dotnet that used machine learning techniques to achieve exactly this and it worked like a charm. Unfortunately I lost the reference and never found it again.

Most important: Worked locally and did not send the filenames to chatGPT ;)

ayoisaiah•1h ago
You can already do this with F2 by using capture variables:

  f2 -f '(\d+).pdf' -r '{$1}_renamed.pdf'
Does that align with what you're looking for?
037•4h ago
Very interesting, I’ll definitely give it a try!

Another approach I recently discovered is an old but beautiful Unix-style tool for renaming files: vidir - edit a directory in your text editor. It’s part of the moreutils suite [1].

You get the list of filenames in your editor – edit them as you like, save, exit, and it renames the files. It uses whatever editor is set in your $EDITOR env var, so it doesn’t have to be vi/vim.

You can also pipe in a list of files, e.g. `find . -type f | vidir -`, to edit just the files you want - and you can even change paths (add, rename, remove directories) in the editor to move files around easily.

To try it quickly on macOS: `brew install moreutils`

[1] https://joeyh.name/code/moreutils/

ddlsmurf•3h ago
if you can forgive a shameless plug, I wrote https://github.com/ddlsmurf/fled some time ago and it serves me very well to this day. (It's not half as advanced as OP's tool but still useful)
porridgeraisin•4h ago
Really nice, wow.

Honestly I don't see myself remembering and using the variables features(which gives the exiftool feature others here are raving about) but it's already insanely good without that. Love the ability to refine your selection with further -f flags. Also the ability to rename while create nested paths is so good.

Suggestion, having an "up"[1] mode where you can see the dry run output in a live updating thing when you are adding further -fs and -rs.

[1] https://github.com/akavel/up

batrat•4h ago
In windows I use PowerToys - power rename to rename files. But I'm not a power user I rarely need renaming something.
hoppp•3h ago
The undo functionality is a nice touch. I know cuz I write scripts to rename files and made mistakes before.

Reinvent the Wheel

https://endler.dev/2025/reinvent-the-wheel/
130•zdw•3h ago•69 comments

Tachy0n: The Last 0day Jailbreak

https://blog.siguza.net/tachy0n/
119•todsacerdoti•3h ago•9 comments

Why old games never die, but new ones do

https://pleromanonx86.wordpress.com/2025/05/06/why-old-games-never-die-but-new-ones-do/
39•airhangerf15•2h ago•23 comments

I used o3 to find a remote zeroday in the Linux SMB implementation

https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-zeroday-vulnerability-in-the-linux-kernels-smb-implementation/
279•zielmicha•9h ago•83 comments

Using the Apple ][+ with the RetroTink-5X

https://nicole.express/2025/apple-ii-more-like-apple-5x.html
13•zdw•2h ago•0 comments

The Logistics of Road War in the Wasteland

https://acoup.blog/2025/05/23/collections-the-logistics-of-road-war-in-the-wasteland/
33•ecliptik•3h ago•12 comments

Lone coder cracks 50-year puzzle to find Boggle's top-scoring board

https://www.ft.com/content/0ab64ced-1ed1-466d-acd3-78510d10c3a1
77•DavidSJ•5h ago•20 comments

Good Writing

https://paulgraham.com/goodwriting.html
127•oli5679•8h ago•151 comments

Show HN: Rotary Phone Dial Linux Kernel Driver

https://gitlab.com/sephalon/rotary_dial_kmod
263•sephalon•10h ago•35 comments

Please Fund More Science (2020)

https://blog.samaltman.com/please-fund-more-science
56•ssuds•5h ago•39 comments

The Xenon Death Flash: How a Camera Nearly Killed the Raspberry Pi 2

https://magnus919.com/2025/05/the-xenon-death-flash-how-a-camera-nearly-killed-the-raspberry-pi-2/
163•DamonHD•11h ago•61 comments

Hong Kong's Famous Bamboo Scaffolding Hangs on (For Now)

https://www.nytimes.com/2025/05/24/world/asia/hongkong-bamboo-scaffolding.html
136•perihelions•11h ago•35 comments

Scientific conferences are leaving the US amid border fears

https://www.nature.com/articles/d41586-025-01636-5
63•mdhb•1h ago•6 comments

Exposed Industrial Control Systems and Honeypots in the Wild [pdf]

https://gsmaragd.github.io/publications/EuroSP2025-ICS/EuroSP2025-ICS.pdf
28•gnabgib•5h ago•0 comments

The Last Nomads

https://www.thedial.world/articles/news/issue-28/georgia-adjara-highlands-nomads
8•Thevet•2d ago•1 comments

An Almost Pointless Exercise in GPU Optimization

https://blog.speechmatics.com/pointless-gpu-optimization-exercise
10•atomlib•3d ago•1 comments

Show HN: F2 – Cross-Platform CLI Batch Renaming Tool

https://github.com/ayoisaiah/f2
89•ayoisaiah•7h ago•16 comments

Peer Programming with LLMs, for Senior+ Engineers

https://pmbanugo.me/blog/peer-programming-with-llms
64•pmbanugo•9h ago•31 comments

Trellis (YC W24) Is Hiring founding SDR to help automate healthcare paperwork

https://www.ycombinator.com/companies/trellis/jobs/7Ru1X1P-founding-sdr
1•macklinkachorn•6h ago

Live facial recognition cameras may become 'commonplace' as police use soars

https://www.theguardian.com/technology/2025/may/24/police-live-facial-recognition-cameras-england-and-wales
106•c-oreills•6h ago•81 comments

Find Your People

https://foundersatwork.posthaven.com/find-your-people
706•jl•1d ago•254 comments

The legacy of the iconic Nakagin capsule tower

https://www.designboom.com/architecture/moma-nakagin-capsule-tower-exhibition-many-lives-museum-modern-art-new-york-05-23-2025/
81•pseudolus•10h ago•23 comments

Show HN: 1 min workouts for people who sit all day

https://shortreps.com
68•melvinzammit•2h ago•24 comments

Root for your friends

https://josephthacker.com/personal/2025/05/13/root-for-your-friends.html
365•rez0123•1d ago•141 comments

Is Astrophotography Without Tracking Possible?

https://astroimagery.com/astrophotography/heres-how-to-do-astrophotography-without-tracking/
18•astroimagery•3d ago•6 comments

Is America Headed for an Age of Dumb Phones?

https://www.businessinsider.com/appstinence-movement-tech-lovers-dumping-smartphones-age-of-dumb-phones-2025-5
5•herbertl•32m ago•4 comments

Why Algebraic Effects?

https://antelang.org/blog/why_effects/
270•jiggawatts•20h ago•165 comments

AI, Heidegger, and Evangelion

https://fakepixels.substack.com/p/ai-heidegger-and-evangelion
105•jger15•9h ago•58 comments

voyage-3.5 and voyage-3.5-lite: improved quality for a new retrieval frontier

https://blog.voyageai.com/2025/05/20/voyage-3-5/
21•fzliu•2d ago•5 comments

Use ramoops for logging under Linux (2021)

https://embear.ch/posts/using-ramoops/
12•zdw•6h ago•1 comments