Enterprise Linux for developers and early-career professionals — from first SSH login to production system administration.https://linux.bradpenney.io/ Brad Penneyen Sun, 14 Jun 2026 01:37:20 -0000 Sun, 14 Jun 2026 01:37:20 -0000 1440 MkDocs RSS plugin - v1.19.0 https://linux.bradpenney.io/images/exploring_linux.png https://linux.bradpenney.io/ Handle script arguments and exit codes in Bash. Learn $1, $@, $#, $?, and how to return meaningful exit codes that other scripts and tools can act on. https://linux.bradpenney.io/essentials/bash_arguments/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/bash_arguments/ Write Bash conditionals that work reliably. Covers if/elif/else, the [[ ]] operator, common file and string tests, and patterns that avoid subtle bugs. https://linux.bradpenney.io/essentials/bash_conditionals/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/bash_conditionals/ Write your first Bash script with confidence. Covers the shebang line, script structure, making scripts executable, and where to store them for team use. https://linux.bradpenney.io/essentials/bash_first_script/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/bash_first_script/ Organise Bash scripts with functions. Learn to define, call, and scope functions with local variables, return values via exit codes, and reuse patterns. https://linux.bradpenney.io/essentials/bash_functions/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/bash_functions/ Master Bash loops for automation. Covers for loops over lists and files, while loops with command output, break and continue, and practical loop patterns. https://linux.bradpenney.io/essentials/bash_loops/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/bash_loops/ A six-article bash scripting series for IT professionals. From your first shebang line to reusable functions — variables, arguments, conditionals, loops. https://linux.bradpenney.io/essentials/bash_scripting/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/bash_scripting/ Master Bash variables and quoting rules. Learn when to use double vs single quotes, command substitution, and how quoting bugs silently break your scripts. https://linux.bradpenney.io/essentials/bash_variables/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/bash_variables/ Orient yourself in the Linux command line. Four articles covering navigation, the filesystem structure, finding files, and getting help when you're stuck. https://linux.bradpenney.io/essentials/command_line_overview/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/command_line_overview/ The Linux commands and concepts every sysadmin and platform engineer must own. Five categories from command line fundamentals to Bash scripting automation. https://linux.bradpenney.io/essentials/overview/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/overview/ Every command you run spawns a process. This section starts with processes — how to see them, manage them, and understand what they're doing on your system. https://linux.bradpenney.io/essentials/system_overview/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/system_overview/ Learn how Linux handles text. Two articles covering pipes, redirection, and grep — the tools you reach for every time you investigate a Linux system. https://linux.bradpenney.io/essentials/text_pipelines_overview/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/text_pipelines_overview/ Master Linux's permission model. Two articles covering file permissions and user/group management — the foundation of every access control decision on Linux. https://linux.bradpenney.io/essentials/users_access_overview/ Wed, 03 Jun 2026 21:58:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/users_access_overview/ Understand Linux process management — ps, top, kill, signals, process states, and the tools every sysadmin uses to investigate and control a running system. https://linux.bradpenney.io/essentials/processes/ Sat, 04 Apr 2026 18:47:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/processes/ Master Linux user and group management — useradd, usermod, groupadd, service accounts, and the /etc/passwd and /etc/group files every sysadmin reads. https://linux.bradpenney.io/essentials/users_and_groups/ Sat, 04 Apr 2026 18:47:00 -0300 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/users_and_groups/ Set up your first Linux environment via SSH or a local VM. Step-by-step guidance to get safely connected and ready to start exploring your new system. https://linux.bradpenney.io/day_one/getting_access/ Tue, 03 Feb 2026 21:52:00 -0400 Exploring Enterprise Linuxhttps://linux.bradpenney.io/day_one/getting_access/ Linux survival guide for developers — SSH, orientation, permissions, logs, documentation, and production safety rules. Get effective without becoming a sysadmin. https://linux.bradpenney.io/day_one/overview/ Tue, 03 Feb 2026 21:52:00 -0400 Exploring Enterprise Linuxhttps://linux.bradpenney.io/day_one/overview/ Master grep for Linux — regular expressions, recursive search, context flags, and the real-world patterns every sysadmin uses for log analysis and system investigation. https://linux.bradpenney.io/essentials/grep/ Tue, 03 Feb 2026 21:52:00 -0400 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/grep/ Master Linux pipes and redirection — combine commands into powerful pipelines, redirect output to files, and manage stdin, stdout, and stderr like a pro. https://linux.bradpenney.io/essentials/pipes_and_redirection/ Tue, 03 Feb 2026 21:52:00 -0400 Exploring Enterprise Linuxhttps://linux.bradpenney.io/essentials/pipes_and_redirection/ Find documentation on an unfamiliar Linux server — man pages, README files, package docs, git history, and what the server itself tells you. https://linux.bradpenney.io/day_one/finding_docs/ Fri, 21 Nov 2025 16:34:00 -0400 Exploring Enterprise Linuxhttps://linux.bradpenney.io/day_one/finding_docs/ Just logged in? Learn what the prompt tells you, how to identify the server you're on, and which safe read-only commands reveal everything you need to know. https://linux.bradpenney.io/day_one/orientation/ Fri, 21 Nov 2025 16:34:00 -0400 Exploring Enterprise Linuxhttps://linux.bradpenney.io/day_one/orientation/