Linux Commands and Shell Scripting Reference for Linux Admins and DevOps Engineers
A structured Linux command and shell scripting reference for operations and DevOps work, rebuilt from the original link collection. It includes a practical learning workflow, command comparison tables, ready-to-use examples, and curated source links.
Shell Scripting (Bash) Training Roadmap: From First Script to Automation
This revised Bash training guide turns the original topic list into a practical learning roadmap. It shows what to study, how topics connect, and which commands to practice for real-world scripting.
Bash Shell Script Parameters: A Practical Reference for Positional and Special Variables
Learn how Bash passes arguments to scripts and how special parameters like $#, $@, $*, $$, and $? behave. This updated reference includes workflow diagrams, comparison tables, and production-friendly examples.
Reading XML in Shell Scripts: Safer Patterns with xmlstarlet and xmllint
Need to extract values from an XML file in a shell script? This revised guide explains the classic grep/sed approach, its limits, and safer XPath-based alternatives for production automation.
Shell Scripting Interview Questions, Explained: Bash Fundamentals, UNIX Processes, and Practical Commands
A modernized, interview-focused guide to shell scripting and core UNIX concepts for DevOps engineers. Learn command execution flow, redirection, permissions, process control, IPC, and safe scripting patterns with practical examples.
Shell and Bash Interview Questions: Practical Answers, Commands, and Script Patterns
A modernized, DevOps-focused reference for common shell and Bash interview questions. Includes command comparisons, scripting patterns, and production-safe examples.
Secure Shell (SSH) Tools
Secure Shell (SSH) is a cryptographic network protocol that provides secure remote login, file transfer, and command execution over an insecure network. SSH tools are software applications…
Shell Bash Scripting: Assignment & Excercise – 12
Write a Shell Bash Script for check if a number is prime or not Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert…
Shell Bash Scripting: Assignment & Excercise – 11
Write a Shell Bash Script for check if a provided number is Armstrong or not Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering…
Shell Bash Scripting: Assignment & Excercise – 10
Write a Shell Bash Script for check if a number input from standard input is odd or even Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud,…
Shell Bash Scripting: Assignment & Excercise – 9
Write a Shell Bash Script for show CPU temperature Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge,…
Shell Bash Scripting: Assignment & Excercise – 8
Write a Shell Bash Script for show hardware information for systems Linux Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about…
Shell Bash Scripting: Assignment & Excercise – 7
Write a Shell Bash Script for backup a local file into a remote server Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert…
Shell Bash Scripting: Assignment & Excercise – 6
Write a Shell Bash Script for gather information related to server Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing…
Shell Bash Scripting: Assignment & Excercise – 5
Write a Shell Bash Script for check if the disk space crosses the limit Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert…
Shell Bash Scripting: Assignment & Excercise – 4
Write a Shell Bash Script for report if CPU usage exceeds the threshold Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate…
Shell Bash Scripting: Assignment & Excercise – 3
Write a Shell Bash Script for report server related information Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical…
Shell Bash Scripting: Assignment & Excercise – 2
Write a Shell Bash Script for evaluate the status of a file/directory. Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about…
Shell Bash Scripting: Assignment & Excercise – 1
Write a Shell Script for output a specified directory’s size. Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical…
Top 50 Jmeter interview questions and answers
1) Explain what is JMeter? JMeter is a Java tool, which is used for performance Load Testing. 2) Explain how JMeter works? JMeter acts like a group…
My Shell Script Usage Collection
sgadmin created the topic: My Shell Script Usage Collection Count Total number of files in Directory and Subdirectory > find . -type f | wc –l Count…
Shell script to run x times
rajeshkumar created the topic: shell script to run x times Problem: First i need to cd to this directory $SWDIR/util Second i need to run the following…
Whats the difference between running a shell scrip
scmuser created the topic: Whats the difference between running a shell scrip Whats the difference between running a shell script as ./script.sh and sh script.sh have a…
Shell script merge two list and remove duplicates
rajeshkumar created the topic: shell script merge two list and remove duplicates You want all the records from list_A supplemented by all the records from list_B for…
Shell script for recursive delete required.
rajeshkumar created the topic: Shell script for recursive delete required. #!/bin/bash if [ $# -ne 1 -o ! -d “$1” ] then echo “Usage $0 dirname” exit…
Shell Script to delete a folder that is more then
scmuser created the topic: Shell Script to delete a folder that is more then Shell Script to delete a folder that is more then 1 week old…
Shell Script Run in Background
rajeshkumar created the topic: shell script run in background I wanted to run a particular shell program in a background and it should not be dependent on…
Shell Bash Scripting: Assignment & Excercise – 18
scmuser created the topic: how to restore the dump file using shell scripting I have created a script file to dump the application files using the following…
Shell Script to Find All New Files Added
scmuser created the topic: shell script to find all new files added Hi, i am looking for a shell script to find all new files added or…
Shell Script Program 1
scmuser created the topic: shell script program 1 Device a script that takes a filename as argument ( which must exist in the current directory) and locates…