Unix Tools

Master Git from the command line: branching, rebasing, hooks, and workflow automation. Real commands tested on Git 2.47. No GUI required.

The CLI tools sysadmins actually used in 2025: fd, ripgrep, bat, zoxide, and 10 more with real benchmarks and install commands.

Learn tmux from scratch: sessions, windows, panes, key bindings, and config. Real commands tested on Ubuntu 24.04 and Debian 12.

Vim 9.1 vs Neovim 0.10: startup time, LSP support, config language, and plugin ecosystem compared for sysadmins and DevOps engineers.

Neovim, Vim, Nano, Emacs, Micro - we tested every major terminal editor on real servers. Here's which one to use and when.

Set up Kubernetes on Linux from scratch. Real commands, kubeadm walkthrough, networking choices, and sysadmin-focused tips for 2026.

The best monitoring tools for Linux servers in 2026: Prometheus, Netdata, Zabbix, and more. Real configs, real commands, tested on production servers.

Master the Linux find command with real examples: mtime, exec, xargs, permissions, size filters. Tested on RHEL 9 and Ubuntu 24.04 LTS.

A practical Ansible tutorial for Linux sysadmins: real playbooks, inventory tricks, roles, vault, and performance tuning. No fluff, just working commands.

curl and wget solve different problems. We tested both on real workloads to show you exactly when to use curl, when to use wget, and when to use neither.

Master nmap 7.95 on Linux with real scan commands, NSE scripts, firewall evasion, and output parsing. Built for sysadmins who need results fast.

Master rsync for Linux backups and sync in 2026. Real commands, flag breakdowns, SSH transfers, incremental backups, and cron automation with specific examples.

Install and configure Terraform 1.9 on Linux. Real commands, provider setup, state backends, and workflow patterns for sysadmins and DevOps engineers.

Master jq 1.7 for command-line JSON processing. Real examples for sysadmins: filtering, transforming, scripting APIs, and automating pipelines.

htop, top, and btop compared on real servers: startup time, CPU overhead, remote SSH use, and which one to install first on a fresh box.

Master the top command on Linux: interpret load averages, CPU steal, memory fields, and interactive controls with real examples for sysadmins.

ripgrep is 5-10x faster than GNU grep on large codebases. We tested both on real workloads. Here's when each tool wins and when to switch.

Master awk and sed for Linux text processing: real commands, field extraction, in-place edits, log parsing, and pipeline patterns used in production.

tmux vs screen compared by real sysadmins: session handling, config, scripting, and performance. We tested both. Here is our direct recommendation.

Master fzf 0.54+ on Linux: shell integration, key bindings, custom commands, and real sysadmin workflows with tested examples.

Master sed on Linux with real commands, regex patterns, and sysadmin workflows. In-place editing, multi-expression, hold space, and pipeline examples.

Master the Linux watch command for live terminal monitoring. Real examples, flags, color diffs, and sysadmin workflows tested on RHEL 9 and Debian 12.

Use strace and lsof to trace syscalls, find open files, debug hangs and permission errors. Real commands, real output, tested on Linux 6.x kernels.

Test real network throughput on Linux with iperf3. Server/client setup, UDP, parallel streams, JSON output, and interpreting results from real lab runs.