74 lines
4.1 KiB
Markdown
74 lines
4.1 KiB
Markdown
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| **Command** | **Description** |
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| `man <tool>` | Opens man pages for the specified tool. |
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| `<tool> -h` | Prints the help page of the tool. |
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| `apropos <keyword>` | Searches through man pages' descriptions for instances of a given keyword. |
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| `cat` | Concatenate and print files. |
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| `whoami` | Displays current username. |
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| `id` | Returns users identity. |
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| `hostname` | Sets or prints the name of the current host system. |
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| `uname` | Prints operating system name. |
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| `pwd` | Returns working directory name. |
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| `ifconfig` | The `ifconfig` utility is used to assign or view an address to a network interface and/or configure network interface parameters. |
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| `ip` | Ip is a utility to show or manipulate routing, network devices, interfaces, and tunnels. |
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| `netstat` | Shows network status. |
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| `ss` | Another utility to investigate sockets. |
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| `ps` | Shows process status. |
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| `who` | Displays who is logged in. |
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| `env` | Prints environment or sets and executes a command. |
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| `lsblk` | Lists block devices. |
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| `lsusb` | Lists USB devices. |
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| `lsof` | Lists opened files. |
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| `lspci` | Lists PCI devices. |
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| `sudo` | Execute command as a different user. |
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| `su` | The `su` utility requests appropriate user credentials via PAM and switches to that user ID (the default user is the superuser). A shell is then executed. |
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| `useradd` | Creates a new user or update default new user information. |
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| `userdel` | Deletes a user account and related files. |
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| `usermod` | Modifies a user account. |
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| `addgroup` | Adds a group to the system. |
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| `delgroup` | Removes a group from the system. |
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| `passwd` | Changes user password. |
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| `dpkg` | Install, remove and configure Debian-based packages. |
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| `apt` | High-level package management command-line utility. |
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| `aptitude` | Alternative to `apt`. |
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| `snap` | Install, remove and configure snap packages. |
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| `gem` | Standard package manager for Ruby. |
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| `pip` | Standard package manager for Python. |
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| `git` | Revision control system command-line utility. |
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| `systemctl` | Command-line based service and systemd control manager. |
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| `ps` | Prints a snapshot of the current processes. |
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| `journalctl` | Query the systemd journal. |
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| `kill` | Sends a signal to a process. |
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| `bg` | Puts a process into background. |
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| `jobs` | Lists all processes that are running in the background. |
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| `fg` | Puts a process into the foreground. |
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| `curl` | Command-line utility to transfer data from or to a server. |
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| `wget` | An alternative to `curl` that downloads files from FTP or HTTP(s) server. |
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| `python3 -m http.server` | Starts a Python3 web server on TCP port 8000. |
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| `ls` | Lists directory contents. |
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| `cd` | Changes the directory. |
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| `clear` | Clears the terminal. |
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| `touch` | Creates an empty file. |
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| `mkdir` | Creates a directory. |
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| `tree` | Lists the contents of a directory recursively. |
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| `mv` | Move or rename files or directories. |
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| `cp` | Copy files or directories. |
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| `nano` | Terminal based text editor. |
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| `which` | Returns the path to a file or link. |
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| `find` | Searches for files in a directory hierarchy. |
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| `updatedb` | Updates the locale database for existing contents on the system. |
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| `locate` | Uses the locale database to find contents on the system. |
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| `more` | Pager that is used to read STDOUT or files. |
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| `less` | An alternative to `more` with more features. |
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| `head` | Prints the first ten lines of STDOUT or a file. |
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| `tail` | Prints the last ten lines of STDOUT or a file. |
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| `sort` | Sorts the contents of STDOUT or a file. |
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| `grep` | Searches for specific results that contain given patterns. |
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| `cut` | Removes sections from each line of files. |
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| `tr` | Replaces certain characters. |
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| `column` | Command-line based utility that formats its input into multiple columns. |
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| `awk` | Pattern scanning and processing language. |
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| `sed` | A stream editor for filtering and transforming text. |
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| `wc` | Prints newline, word, and byte counts for a given input. |
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| `chmod` | Changes permission of a file or directory. |
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| `chown` | Changes the owner and group of a file or directory. |
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