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Entry level certification

Linux+ practice labs

LX0-101 LX0-110

Filesystem navigation, file permissions, users and groups, basic scripting, and troubleshooting. Every objective below has a lab that runs a real Linux shell in your browser, so you practise the command rather than memorise the syntax.

Objectives covered

The skill areas these labs rehearse for Linux+, written as plain descriptions of what you need to be able to do.

• 1Command line and shells: prompts, arguments, pipes and redirection
• 2Files and storage: navigating, creating, editing, and file types
• 3Users, groups and permissions: accounts, ownership, and the rwx model
• 4Basic security: file permissions, passwords, and encryption at rest
• 5Scripting basics: variables, loops, and reading shell scripts
• 6Networking basics: addressing, ports, and the tools that inspect them
• 7System hardware, boot and service management
• 8Troubleshooting: reading logs and narrowing down a fault

Practice these labs

• Creating FilesMake the folders you actually want, then write down what you did so you remember it tomorrow.
• The FilesystemExplore the filesystem and learn what each top level folder is for.
• Finding FilesYou have lost a download somewhere under /home/student.
• First ContactOpen a shell on the practice machine and run your first commands.
• Listing FilesA practice folder full of files, including one you have to look closely to see.
• Reading LogsEvery machine keeps a diary.
• Moving AroundMove between folders and read a file to find the configuration.
• Ports and ConnectionsRun a web server for a day and you meet four ports before lunch.
• Who Can Open WhatLinux decides who can open a file using nine characters.
• PermissionsUnderstand how rwx works before you change anything.
• Running ProcessesEverything on Linux is a process, including the ones you never see.
• Reading FilesA configuration file is sitting in your home folder.
• Writing to FilesSend command output into files.
• Searching a Whole TreeA whole tree of files, and you need three things from it.
• System InformationGet to know the machine you are sitting at: kernel, architecture, disk usage and uptime.
• Searching Textgrep is the tool you will reach for most often.
• Users and GroupsRead /etc/passwd and sort real user accounts from system ones.
• Where Am I?You are logged in.

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