Stop pulling your hair out when df and du don’t match
Disk & Filesystem Management (Du/Df/Lsblk/Fstrim) Stop pulling your hair out when df and du don’t match 🧩 The Challenge You finally found the directory hogging all your space, deleted the...
Category: Linux/Unix
In this category, you can see all articles related to Unix or Linux operating System.
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Your Backup Job Ran. Did It Actually *Work*?
Backup, Snapshotting & Disaster Recovery Your Backup Job Ran. Did It Actually *Work*? Technical Briefing | 9/29/2026 Every sysadmin worth their salt sets up backups. We write the scripts, schedule...
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Stop parsing log dates by hand with awk
Text Processing (Grep/Sed/Awk) Stop parsing log dates by hand with awk 🧩 The Challenge Dealing with logs that have weird custom timestamps or mismatched formats is a nightmare when you’re...
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Stop your shell history from getting nuked by concurrent sessions
Environment & Shell Customization (Aliases/Functions/.Bashrc) Stop your shell history from getting nuked by concurrent sessions 🧩 The Challenge Everyone works with multiple tabs open, but bash usually overwrites the history...
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Your immutable server just rebooted: Why is cloud-init still busy?
Cloud-Native Linux (Cloud-Init, Immutable OS, Bootc) Your immutable server just rebooted: Why is cloud-init still busy? Technical Briefing | 9/29/2026 You’ve just provisioned a shiny new immutable OS instance —...
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Stop crontab from running your jobs twice because of clock drift
Cron & Task Scheduling (Cron/Systemd Timers/At) Stop crontab from running your jobs twice because of clock drift 🧩 The Challenge Dealing with a server that jumps back in time because...
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Fix sticky bit permission madness on shared directories
Permissions & Security (Chmod/Chown/ACLs/SELinux/AppArmor) Fix sticky bit permission madness on shared directories 🧩 The Challenge You know that feeling when you set up a shared folder for the team and...
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When your package manager wants to uninstall half your server, here’s why
Package Management & Distro Internals (Apt/Dnf/Pacman) When your package manager wants to uninstall half your server, here’s why Technical Briefing | 9/28/2026 You’ve been there. It’s Tuesday, you just want...
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Stop leaving temp files all over the place
Shell Scripting / Bash Tricks Stop leaving temp files all over the place 🧩 The Challenge Ever have a script bomb out and leave some junk files in `/tmp` or...
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Stop manually stripping junk from your log exports
Text Processing (Grep/Sed/Awk) Stop manually stripping junk from your log exports 🧩 The Challenge Dealing with raw logs that contain non-printable garbage or weird ANSI color codes is a total...