# Linux, Devops, Scripting, Cats and various things come to my mind
// also on this box: ./practice, ./tools and ./games
By Konstantinos Patronas, kpatronas@gmail.com Every Linux admin has had this conversation: "The backup script works perfectly when I run it." "So why is last night's backup missing?" The script runs fine in…
cat cronman-stop-guessing-why-your-cron-job-didnt-run.md →ttl is a Rust traceroute/mtr replacement with ASN lookup, ECMP path discovery, PMTU detection, trace diffing and a headless Prometheus mode. Here is what it does and when it is worth using over mtr.
cat ttl-faster-mtr-diff-traceroutes-prometheus-metrics.md →One curl line that downloads a file only when the server has a newer one, and why -f, -R and friends are there.
cat curl-keep-a-local-copy-up-to-date.md →In Linux systems, empty directories often accumulate over time — leftovers from removed applications, failed builds, or cleanup scripts…
cat finding-empty-directories-in-linux-with-one-command.md →There’s a moment every Linux user hits sooner or later.
cat copy-a-directory-structure-transfer-nothing.md →When working in the terminal, backing up a file before editing it is a habit that saves time, nerves, and sometimes entire systems. There’s…
cat the-fastest-way-to-back-up-a-file-in-bash-youre-probably-not-using-it.md →If you often type commands in Greek and English, you might have noticed a common annoyance: typing Greek letters by mistake in the…
cat mistakenly-entered-a-command-in-terminal-in-greek-auto-switch-keyboard.md →RabbitMQ is a lightweight message broker that connects independent services through reliable message passing. It’s widely used in…
cat how-to-send-and-receive-data-with-rabbitmq-named-queues-in-python.md →Assume the following problem, you have myriad of word files and you want to search inside files for a specific keyword and opening each…
cat how-to-use-grep-to-search-text-in-docx-files.md →Ever wondered who’s logging into your Linux box? Whether it’s a critical production server or a personal VPS, it’s smart to get notified…
cat stop-intruders-in-their-tracks-get-an-email-every-time-someone-logs-in-via-ssh.md →
