Tag: Linux
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Linux Networking From the Command Line: ip, ss, and ping (Linux for Beginners, Part 12)
Ping the address and it answers, but the name will not resolve. This is Linux networking from the command line: ip, ss, ping and dig, what each one proves, and how to make the config stick on Debian and RHEL.
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Partition, Format, and Mount a Disk in Linux (Linux for Beginners, Part 11)
A new disk gives you a block device and zero usable storage. Here is the partition, format, mount workflow, plus the fstab option that keeps a missing disk from wrecking your boot.
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Reading Linux Logs With journalctl and the systemd Journal (Linux for Beginners, Part 10)
Read Linux logs the fast way. journalctl by unit, boot, priority and time, the volatile-journal default that silently loses your logs, and how to keep the journal off your disk.
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How Does systemd Start and Manage Linux Services? (Linux for Beginners, Part 9)
systemctl controls every service on a modern Linux box. Learn start versus enable, reading status, safe drop-in overrides, journald logs, and why blame is the wrong tool for a slow boot.
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Install, Update, and Remove Software With apt and dnf (Linux for Beginners, Part 8)
A hands-on guide to Linux package management with apt and dnf: the six everyday commands, where packages come from, and how to fix the errors that stop an install.
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Linux Processes Explained: ps, top, and kill (Linux for Beginners, Part 7)
A process is a running program with a number. Learn to find it with ps and top, and stop it with the right signal, using real commands and output.
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Linux File Permissions and chmod, From rwx to Octal (Linux for Beginners, Part 6)
Read a Linux permission line, turn rwx into octal, and use chmod and umask with confidence, including the directory execute bit and the recursive chmod that breaks sites.
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Who Can Run What on a Linux System? Users, Groups, and sudo (Linux for Beginners, Part 5)
Linux allows or denies every action based on your user, your groups, and sudo. Here is how UIDs, /etc/passwd, /etc/shadow, groups, and the sudoers file actually decide what you can run.
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Copy, Move, and Delete Files From the Linux Command Line (Linux for Beginners, Part 4)
The five commands that do almost all file work in Linux: cp, mv, rm, mkdir and ln. Learn the quiet defaults that catch everyone, plus hard versus symbolic links.
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How the Shell Turns Your Words Into Commands (Linux for Beginners, Part 3)
What bash actually does between you pressing Enter and a program running: expansions, quoting, PATH lookup, and pipes, shown with real commands you can follow on any Linux box.
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The Linux Filesystem Hierarchy, Directory by Directory (Linux for Beginners, Part 2)
Linux has one directory tree, not drive letters. A practical tour of the top-level directories, absolute versus relative paths, the /usr merge, and how to spot inode exhaustion.
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Why Linux Runs the World, and Where You Already Use It (Linux for Beginners, Part 1)
Linux quietly runs most servers, every top supercomputer, and most phones. Part 1 shows where it hides, the kernel-versus-distribution split, and how to identify any Linux box you land on.
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About the Author
Dr Pranay Jha
Dr. Pranay Jha is a Cloud and AI Consultant with 18+ years of experience in hybrid cloud, virtualization, and enterprise infrastructure transformation. He specializes in VMware technologies, multi-cloud strategy, and Generative AI solutions. He holds a PhD in Computer Applications with research focused on Cloud and AI, has published multiple research papers, and has been a VMware vExpert since 2016 and a VMUG Community Leader.
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