sysadmin tools
How to Use free Command in Linux: Monitor Memory the Right Way
Learn how to use the free command in Linux to monitor memory usage, interpret available vs used memory, and avoid common mistakes. Practical examples for sysadmins.
How to Use df Command in Linux: The Disk Space Tool Every Admin Needs
Master the df command in Linux to monitor disk space, understand filesystem usage, troubleshoot storage issues, and prevent system failures with practical examples.
How to Use ss Command in Linux: The Socket Tool Every Sysadmin Needs
Learn how to use the ss command in Linux for network monitoring and troubleshooting. Modern replacement for netstat with practical examples for sysadmins.
How to Use tail Command in Linux: The Log Monitoring Tool Every Admin Needs
Learn how to use the Linux tail command to monitor logs in real-time, view file ends, and troubleshoot systems. Essential examples for sysadmins.
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 ...
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.
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.
How to Use Journalctl in Linux: The Log Command That Saved My Career
Learn how to use journalctl in Linux to troubleshoot problems and monitor services. Master filtering by time, service, and priority with real-world examples.
