#lsof
just noticed Bite Size Command Line came out 7 years ago, I still sometimes forget the syntax for lsof and have to look it up at wizardzines.com/comics/lsof/ :)

wizardzines.com/zines/bite-s...
August 5, 2025 at 3:26 PM
lsof is your friend.
July 20, 2026 at 10:33 AM
lsof

permalink: wizardzines.com/comics/lsof/
from our zine "Bite Size Command Line": wizardzines.com/zines/bite-s...
September 5, 2025 at 1:43 PM
lsof -i -t:[numero da porta] | xargs-kill
January 15, 2025 at 4:26 PM
A local mobile backend won't start because port 3000 is busy? Select listeners:

kill $(lsof -t -iTCP:3000 -sTCP:LISTEN)

mikolajwilczek.dev/blog/lsof/?u...
Free a port with lsof and start a fresh server
Find and stop a local TCP listener with lsof, then start a fresh server. A quick fix for macOS and Linux.
mikolajwilczek.dev
September 24, 2026 at 2:15 PM
tidy little bash alias you can use to keep yourself from eternally googling how to kill the hanging process at :3000 :)

henry.codes/writing/a-on...
January 6, 2026 at 5:43 PM
Linux can also dump all opened files and the associated programs that have them open using the "lsof" utility. You can grep (filter) the output for the path(s) to the USB drive(s).
July 20, 2026 at 10:27 AM
My underrated Linux pick is the lsof command. It tells you exactly which files are open and which processes are using them. Insanely powerful and useful in everyday troubleshooting 😎👇 #cybersecurity #infosec #sysadmin

Find pdf books with all my #linux related infographics at study-notes.org
November 30, 2025 at 2:32 PM
another trick is sudo lsof -n and there's a file size column to sort by
October 22, 2025 at 1:50 AM
lsof /path/to/drive 🤷‍♂️
January 13, 2025 at 8:47 PM
‘A country at war, and Congress goes home': Steele slams GOP for dismissing Trump's war.
www.youtube.com/watch?v=LsoF...
‘A country at war, and Congress goes home': Steele slams GOP for dismissing Trump's war
YouTube video by MS NOW
www.youtube.com
March 31, 2026 at 2:36 AM
This is useful. Made me create a general fn:
September 8, 2025 at 5:33 PM
lsof使うのはおじさんだけ了解
July 12, 2023 at 7:05 AM
Warning: GetIPCConnectionDetails: lsof is required to run steam and it may not be available - please install
July 7, 2026 at 10:17 PM
🚩Exatamente isso....Esquerda cirandeira...
Esquerda que a direita ama..

🚩Isso é perfeito para ilustrar esta esquerda que bloqueia, resmunga, fala mal do Lula mais se beneficia do que ele faz.

🚩Falou tudo...tudinho mesmo...👏👏

🚩Perfeito Marcelo👏...

youtu.be/LsOF-XGW2Qc?...
ABSURDO - Supostos apoiadores dão um jeito de meter Lula na crise da Venezuela
YouTube video by Democracia Explicada / Marcelo Marcengo
youtu.be
January 3, 2026 at 3:26 PM
`lsof` has possibly the worst manpage of any utility I have ever used.
September 5, 2026 at 12:28 AM
January 16, 2026 at 3:23 AM
lsofの代替、知らない…
July 12, 2023 at 7:29 AM
How do you check if a #Linux TCP port is open without the usual tools (netstat, ss, nc, curl, nmap, telnet, lsof, tcpdump)?
Try it out on a live server with our latest easy scenario "Porto" sadservers.com/scenario/porto
May 17, 2026 at 12:59 PM
"Address already in use"
lsof -i:8000: No results
December 17, 2025 at 4:20 PM
I always forget the `lsof` syntax tbh
September 15, 2026 at 2:29 AM
lsof is your friend here
June 23, 2024 at 8:38 PM
You're running Laravel and Vite. Both report green. The queue worker logs say it's processing, but nothing's moved in twenty minutes. You check lsof. You check ports. You kill what you think is the old Node process. Still stuck.
September 25, 2026 at 10:48 AM