Linux pmap Command Guide: Inspect Process Memory Maps with Practical Examples
Learn how to use the Linux pmap command to inspect per-process memory mappings, compare output modes, and troubleshoot high memory usage quickly. This updated guide includes workflow steps, command examples, and interpretation tips.
iostat Command Guide for Linux: 20 Practical Examples for CPU and Disk I/O Troubleshooting
Learn how to use iostat to monitor CPU and storage performance on Linux systems. This revised guide covers installation, 20 practical commands, metric interpretation, and a troubleshooting workflow.
xargs in Linux: Practical Commands, Safe Patterns, and Pipeline Workflows
This guide explains how to use xargs effectively in Linux/Unix shells, from basic stdin handling to safe file operations and parallel execution. You’ll learn practical command patterns, portability caveats, and safer alternatives.
Linux mount and umount Commands: Practical Examples, /etc/fstab, and Safe Unmounting
Learn how to mount and unmount filesystems reliably on Linux, from one-off commands to persistent /etc/fstab entries. This guide covers common filesystem types, command comparisons, and safe troubleshooting steps.
Unix Epoch Timestamp Guide for DevOps: Conversions, Commands, and Pitfalls
Unix epoch timestamps are simple in concept but easy to misuse in production. This updated guide shows reliable conversions across shell, Python, JavaScript, and SQL, with timezone and Y2038 guardrails.
Common UNIX Commands and Utilities: Practical Reference for DevOps and Sysadmin Work
A structured UNIX command reference organized by real operational tasks: discovery, files, processes, networking, text processing, and job control. Includes C-shell notes, comparison tables, and practical command examples.
UNIX sed Quick Reference: Print and Delete Lines with Address and Pattern Ranges
Use this sed quick reference to print or delete exact lines, ranges, and regex matches without opening an editor. It also highlights GNU vs POSIX differences and safer in-place editing patterns.
Unix grep Quick Reference: Patterns, Options, and Real Command Examples
grep is the core Unix command for searching text by pattern across files or standard input. This revised quick reference covers syntax, high-value options, and practical examples you can use immediately.
Apache Ant: Set the Current User Home Directory with env.HOME (and Safe Fallbacks)
Learn how to read the logged-in user’s home directory in Ant using env.HOME, then make it portable with a user.home fallback. Includes build.xml patterns you can use in local builds and CI.
Unix Basics for DevOps Engineers: Commands, Permissions, Pipes, and Workflow
This revised guide turns a legacy Unix slide embed into a practical reference for beginners and DevOps engineers. Learn core Unix concepts, essential commands, and command execution flow with hands-on examples.
Linux Tutorials: mpstat commands examples
mpstat – Report processors related statistics. The mpstat command writes to standard output activities for each available processor, processor 0 being the first one. Global average activities…
Linux Tutorials: vmstat commands examples
The vmstat command (short for virtual memory statistics) is a built-in monitoring utility in Linux. Users can observe system activity virtually in real-time by specifying a sampling…
XAMPP: Another web server is already running
Step 1: Stop the Apache Step 2: and Then Restart Apache 👉 if above command will not work in your machine then do below steps: Step 1…
What is Linux? Which is the Best Source of Linux Training and Certification?
Hi Friends, If you are looking for a Career in Linux but you are not very sure if it’s the right decision, then you have landed in…
Unix command to find memory usage
rajeshkumar created the topic: unix command to find memory usage Monitor processes continuously. Updates every 3 seconds by default. Displays useful information such as total memory, memory…
Find Application Instance Directory In Unix
scmuser created the topic: find application instance directory in unix How to find installed application directory in unix? rajeshkumar replied the topic: Re:find application instance directory in…
Unix command to Know some useful system Information
rajeshkumar created the topic: Unix command to Know some useful system Information Unix command to Know some useful system Information top show system stats and top CPU…
Memory Usage In UNIX
aparna created the topic: memory usage in Unix I have a map file and I need to test this file and get all the information about the…