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#linux
Every field note filed under “linux”. Browse all topics or read them all.
awk in 10 Minutes With Practical Examples
Nobody reads the awk manual. Here are the patterns that cover 90% of real-world use.
4 min readPython One-Liners for Server Troubleshooting
When awk gets ugly and bash gets painful, Python -c is right there in your PATH.
3 min readWriting systemd Services That Actually Work
Unit files, restart policies, environment variables, and journalctl. A practical guide to running your own daemons.
3 min readDebugging Running Docker Containers Without Restarting Them
exec, logs, inspect, and nsenter. Four tools for figuring out what is happening inside a container without touching it.
3 min readBypassing ISP Deep Packet Inspection on Linux
When your ISP blocks websites at the packet level, here is how to get around it without a full VPN.
5 min readjq Is the SQL of JSON
Every API returns JSON now. jq turns your terminal into a query engine for it.
3 min readSSH Config Tricks I Use Every Day
Stop typing full hostnames and passwords. Your SSH config file is more powerful than you think.
3 min readBash Traps and the Art of Not Leaving a Mess
How trap, set -e, and a cleanup function can save you from half-finished deployments.
3 min read