My Time with Firejail: How to Uninstall Without Blowing Up Your System
Firejail’s firecfg sandboxed my whole desktop, screenshots included. How to uninstall it cleanly on Arch-based Linux without leaving broken symlinks behind.
Linux
Write Your Own Traceroute Tool
Can’t install traceroute on a locked-down Linux system? Build your own in Bash with ping and increasing TTL values, then test, troubleshoot and extend it.
How to Find Large Files on Linux
Your disk is full and you need to know why. Find the biggest files on any Linux box using du and find, sidestep the permission-denied noise, and wrap the whole thing in a one-word alias.