Linux commands
62 articles
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How to Use the head Command in Linux: The Quick File Preview Tool Every Admin Needs
Learn how to use the head command in Linux to quickly preview files, analyze logs, and build powerful pipelines. Practical examples for sysadmins in 2025.
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How to Use ps Command in Linux: The Process Tool Every Admin Needs
Learn how to use the ps command in Linux with real-world examples. Master process monitoring, troubleshooting, and system administration with this essential tool.
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How to Use Sort Command in Linux: The Text Tool Every Admin Uses Daily
I’ve lost count of how many times the sort command has pulled me out of a tight spot. Whether I’m analyzing server logs, cleaning up configuration files, or…
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How to Use Zip and Unzip Commands in Linux: The Complete Guide
Master the zip and unzip commands in Linux with practical examples. Learn compression, encryption, cross-platform sharing, and troubleshooting tips.
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Apt Update vs Apt Upgrade: What’s the Difference?
Learn the crucial difference between apt update and apt upgrade commands. Discover why running them in the right order matters for Linux system security.
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How to Use the Watch Command in Linux: Monitor Commands in Real Time
Learn how to use the watch command in Linux to monitor commands in real time. Real-world examples, essential options, and practical tips from 10+ years of sysadmin work.
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How to Use curl Command in Linux: The Essential Tool for Every Sysadmin
Master the curl command in Linux with real-world examples for API testing, file downloads, and troubleshooting. Complete guide with practical use cases for 2025.
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How to Use sed in Linux: The Text Processing Tool Every Sysadmin Needs
Master the sed command in Linux with practical examples. Learn text processing, find-and-replace operations, and real-world use cases that every sysadmin needs.
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How to Use lsof Command in Linux: The Troubleshooting Tool That Saves Careers
Master the lsof command in Linux with real-world examples. Learn to troubleshoot network connections, find deleted files eating disk space, and solve production issues fast.
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How to Check Hostname in Linux: The Command Every Admin Uses Daily
Learn how to check hostname in Linux using hostname, hostnamectl, and configuration files. Master FQDN lookups and hostname management for better server administration.
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How to Use Traceroute in Linux: The Network Diagnostic Tool Every Admin Needs
I still remember the first time a user complained that “the internet was slow.” Fresh out of college, armed with my shiny new CS degree, I confidently ran…
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How to Use Rsync in Linux: The File Transfer Tool Every Sysadmin Relies On
Learn how to use rsync in Linux with this complete guide. Master file synchronization, remote transfers, backups, and avoid common mistakes that cost hours.
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How to Check Network Interface in Linux: The Complete Guide
Master Linux network interfaces with ip, nmcli, and ethtool commands. Learn to troubleshoot connectivity issues and understand network interface names.
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ls Command in Linux: The Complete Guide with Examples
Master the ls command in Linux with this complete guide. Learn essential options, advanced techniques, common mistakes, and real-world examples from 15 years of system administration.
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How to Check Open Ports in Linux: The Complete Guide
Learn how to check open ports in Linux with ss, netstat, lsof, and nmap. Complete guide with practical examples, troubleshooting tips, and security best practices for 2025.
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How to Kill a Process in Linux: Complete Guide with Examples
Learn how to kill a process in Linux with kill, killall, and pkill commands. Complete guide covering SIGTERM vs SIGKILL signals, zombie processes, and best practices for process…
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How to Add and Manage Users in Linux: Complete Guide
Learn how to add, modify, and manage users in Linux with useradd, usermod, and userdel commands. Complete guide with examples, best practices, and security tips.
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Linux ln Command: Mastering Hard Links and Symbolic Links
Complete guide to the Linux ln command with practical examples. Learn the difference between hard links and symbolic links, when to use each, and master file linking in…
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Linux Find Command Examples: The Complete Guide to File Searching
Master the Linux find command with practical examples and real-world use cases. Learn to search files by name, size, permissions, and time. Complete 2025 guide with advanced techniques.
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Linux chmod Command: Complete Guide with Real-World Examples
Master the Linux chmod command with practical examples. Learn symbolic and numeric modes, common permission patterns, and avoid security mistakes. Complete 2025 guide.
Related topics
- Linux sysadmin 113
- Command line 48
- Almalinux 21
- Linux networking 20
- Linux troubleshooting 20
- Linux security 17
- Shell scripting 16
- Bash 14
- Open source backup 13
- Ubuntu 12
- Homelab 11
- Systemd 10
