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Linux Command Line Flashcards
CompTIA A+ 220-1202 (V15) Flashcards
| Front | Back |
| Archive files and directories into a tarball | tar |
| Change directories | cd |
| Compress files with gzip | gzip |
| Concatenate and display file contents | cat |
| Configure network settings | ifconfig |
| Configure wireless networking settings | iwconfig |
| Copy a file or directory | cp |
| Create a hard or symbolic link | ln |
| Create a new directory | mkdir |
| Create an empty file or update its timestamp | touch |
| Decompress gzip files | gunzip |
| Delete a file or directory | rm |
| Display disk usage of files and directories | du |
| Display memory usage | free |
| Display the manual page for a command | man |
| Download files from the web | wget |
| Find files by name in a directory tree | find |
| Follow file changes in real-time | tail -f |
| Get the current working directory of a shell | pwd |
| List contents of a directory | ls |
| List the beginning of a file | head |
| List the end of a file | tail |
| Lists processes | ps |
| Locate files using a database | locate |
| Move a file | mv |
| Remove an empty directory | rmdir |
| Searches a file or input for particular characters | grep |
| Securely copy files over SSH | scp |
| Set a user's password | passwd |
| Sets permissions of files or directories | chmod |
| Sets the owner of files or directories | chown |
| Show disk space usage | df |
| Stop a running process | kill |
| Text editor that is infamous for being impossible to exit | vi |
| Turn off or power off | shutdown |
| Ubuntu package manager | apt-get |
| Used to run subcommands as root (admin) | sudo |
| Used to switch users in a shell | su |
| View running processes dynamically | top |
These cards cover key commands such as "ls" for listing directory contents, "grep" for searching files, "cd" for navigating directories, and "shutdown" to power off the system. Learn to manage files with "mv," "cp," and "rm"; control permissions with "chmod" and "chown"; and configure networks using "iwconfig" and "ifconfig." Dive into process management with "ps," "kill," and root-level tasks using "sudo" and "su." Whether you're a sysadmin or developer, this deck also includes commands like "apt-get" for package management and the infamous "vi" text editor. Sharpen your Linux skills today!