UNIX and Linux Essentials

Course Description

UNIX and Linux Essentials builds practical capability in command-line navigation, file administration, permissions, process control, shell automation, and operational troubleshooting. Learners work within an operations team standardizing secure UNIX and Linux administration practices across development and support servers, linking configuration and process decisions to security, accuracy, availability, and operational ownership.

The learning path moves through Command Line, Filesystem Navigation, and Text Tools; Permissions, Processes, and Shell Environment; Bash Scripting, Pipelines, and Job Automation; Archives, Remote Transfer, and Operational Troubleshooting. Every stage produces practical evidence, a validation record, troubleshooting notes, and a reusable handover outcome.

What You Will Learn

• Apply shell syntax, command discovery, help systems, and safe command execution while working through command line, filesystem navigation, and text tools.
• Validate absolute and relative paths, files, directories, links, and filesystem navigation and resolve issues involving redirection, pipes, standard streams, and repeatable text-processing evidence.
• Apply users, groups, ownership, modes, umask, and access verification while working through permissions, processes, and shell environment.
• Validate process states, ps, top, jobs, signals, foreground, and background control and resolve issues involving disk, memory, process, and permission diagnostics for common support incidents.
• Apply variables, quoting, parameters, exit codes, and defensive shell scripting while working through bash scripting, pipelines, and job automation.
• Validate conditions, loops, functions, case logic, and input validation and resolve issues involving cron scheduling, script permissions, error handling, and execution auditing.
• Apply tar, gzip, compression choices, archive inspection, and restoration while working through archives, remote transfer, and operational troubleshooting.
• Validate ssh, scp, sftp, remote identity checks, and secure transfer practices and resolve issues involving structured troubleshooting, rollback planning, and administrator handover.

Training Approach

Guided demonstrations, hands-on configuration, scenario analysis, validation checklists, controlled failure testing, troubleshooting, solution review, and a final improvement plan are used throughout UNIX and Linux Essentials. Learners document assumptions, settings, outputs, exceptions, corrective actions, rollback needs, and operational responsibilities.