Linux Command Line Essentials Flashcards
CompTIA Linux+ XK0-006 (V8) Flashcards
| Front | Back |
| alias | Creates shortcuts for commands |
| cat | Displays the contents of a file |
| cd | Used to change the current directory |
| chmod | Changes file or directory permissions |
| chown | Changes file or directory ownership |
| clear | Clears the terminal screen |
| cp | Command to copy files or directories |
| curl | Transfers data from or to a server using various protocols |
| df | Displays filesystem disk space usage |
| df -h | Displays human-readable disk space usage |
| du | Shows disk usage for files and directories |
| du -sh | Summarizes disk usage in human-readable format |
| echo | Displays text or data to standard output |
| env | Shows environment variables |
| export | Sets environment variables for the current session |
| find | Locates files and directories based on criteria |
| grep | Searches files for a specific pattern |
| gunzip | Decompresses gzip-compressed files |
| gzip | Compresses files using the gzip format |
| head | Displays the first few lines of a file |
| history | Displays previously executed commands |
| ifconfig | Displays and configures network interfaces |
| ip | Modern command to display/manipulate network settings |
| kill | Terminates a specific process using its PID |
| kill -9 <PID> | Forcefully kills a process |
| less | Views file contents with backward navigation capability |
| locate | Quickly finds files using a pre-built database |
| ls | Command to list directory contents |
| man | Displays the manual page for a command |
| mkdir | Command to create new directories |
| more | Views file contents page by page |
| mv | Command to move or rename files or directories |
| nano | Command-line text editor |
| ping | Tests connectivity to a specific host |
| ps | Displays active processes |
| ps aux | Displays detailed information about all processes |
| pwd | Prints the current working directory path |
| rm | Command to remove files or directories |
| rmdir | Command to remove empty directories |
| rsync | Synchronizes files or directories remotely and locally |
| scp | Copies files securely between hosts |
| ssh | Securely connects to a remote system |
| sudo | Runs commands with elevated privileges |
| tail | Displays the last few lines of a file |
| tar | Archives files into a compressed or uncompressed format |
| top | Displays real-time system and process monitoring |
| touch | Creates an empty file or updates file timestamps |
| uname | Displays system information |
| uptime | Shows system uptime and load averages |
| vim | Advanced text editor with modes for editing and navigating |
| wget | Downloads files from the internet |
| whoami | Displays the current user name |
Related Study Materials
About the Flashcards
Flashcards for the CompTIA Linux+ exam help students review common command-line utilities and core workflows. This deck covers file and directory management (ls, cd, mkdir, rm, cp, mv, touch), viewing and editing text (cat, head, tail, more, less, nano, vim), and permissions and ownership (chmod, chown, sudo).
It also reinforces system and resource commands-process monitoring and control (ps, top, kill, uptime), disk and filesystem checks (df, du, df -h, du -sh), searching and locating files (grep, find, locate), networking and remote operations (ifconfig, ip, ping, ssh, scp, wget, curl, rsync), and shell environment tools (env, export, alias, history, man). Focus on terminology, command options, and typical use cases.
Topics covered in this flashcard deck:
- File and directory management
- Viewing and editing files
- Permissions and ownership
- Processes and monitoring
- Networking and remote access
- Compression and archiving