Difference between revisions of "Basics"
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A small Linux cheat sheet, introducing the very basic and very essential commands for surviving at the Linux CLI. | A small Linux cheat sheet, introducing the very basic and very essential commands for surviving at the Linux CLI. | ||
| + | |||
| + | <table border="1"> | ||
| + | <tr> | ||
| + | <th>Heading</th> | ||
| + | <th>Another Heading</th> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>row 1, cell 1</td> | ||
| + | <td>row 1, cell 2</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>row 2, cell 1</td> | ||
| + | <td>row 2, cell 2</td> | ||
| + | </tr> | ||
| + | </table> | ||
===Moving around in the file system=== | ===Moving around in the file system=== | ||
| + | <table border="1"> | ||
| + | <tr> | ||
| + | <th>Command</th> | ||
| + | <th>Action</th> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>pwd</td> | ||
| + | <td>"Print working directory" - show what dir you're in.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>ls</td> | ||
| + | <td>List the contents of a dir.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>ls -l</td> | ||
| + | <td>List the contents of a dir and show additional info of the files.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>ls -a</td> | ||
| + | <td>List all files, including hidden files.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>cd</td> | ||
| + | <td>Change directory.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>cd ..</td> | ||
| + | <td>Go to the parent directory.</td> | ||
| + | </tr> | ||
| + | </table> | ||
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===Examining files=== | ===Examining files=== | ||
| − | + | <table border="1"> | |
| − | + | <tr> | |
| − | file | + | <th>Command</th> |
| − | cat | + | <th>Action</th> |
| − | less | + | </tr> |
| + | <tr> | ||
| + | <td>file</td> | ||
| + | <td>Determine the type of a file.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>cat</td> | ||
| + | <td>Concatenate a file.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>less</td> | ||
| + | <td>View text files and paginate them if needed.</td> | ||
| + | </tr> | ||
| + | </table> | ||
===Manipulating files and directories=== | ===Manipulating files and directories=== | ||
| + | <table border="1"> | ||
| + | <tr> | ||
| + | <th>Command</th> | ||
| + | <th>Action</th> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>cp</td> | ||
| + | <td>Copy a file.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>cp -i</td> | ||
| + | <td>Copy a file and ask before overwriting.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>cp -r</td> | ||
| + | <td>Copy a directory with its contents.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>mv</td> | ||
| + | <td>Move or rename a file.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>mv -i</td> | ||
| + | <td>Move or rename a file and ask before overwriting.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>rm</td> | ||
| + | <td>Remove a file.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>rm -r</td> | ||
| + | <td>Remove a directory with its contents.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>rm -i</td> | ||
| + | <td>Ask before removing a file. Good to use with the -r option.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>mkdir</td> | ||
| + | <td>Make a directory.</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>rmdir</td> | ||
| + | <td>Remove an empty directory.</td> | ||
| + | </tr> | ||
| + | </table> | ||
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===Files and directory Permissions=== | ===Files and directory Permissions=== | ||
Revision as of 00:08, 22 July 2009
A small Linux cheat sheet, introducing the very basic and very essential commands for surviving at the Linux CLI.
| Heading | Another Heading |
|---|---|
| row 1, cell 1 | row 1, cell 2 |
| row 2, cell 1 | row 2, cell 2 |
Contents
Moving around in the file system
| Command | Action |
|---|---|
| pwd | "Print working directory" - show what dir you're in. |
| ls | List the contents of a dir. |
| ls -l | List the contents of a dir and show additional info of the files. |
| ls -a | List all files, including hidden files. |
| cd | Change directory. |
| cd .. | Go to the parent directory. |
Examining files
| Command | Action |
|---|---|
| file | Determine the type of a file. |
| cat | Concatenate a file. |
| less | View text files and paginate them if needed. |
Manipulating files and directories
| Command | Action |
|---|---|
| cp | Copy a file. |
| cp -i | Copy a file and ask before overwriting. |
| cp -r | Copy a directory with its contents. |
| mv | Move or rename a file. |
| mv -i | Move or rename a file and ask before overwriting. |
| rm | Remove a file. |
| rm -r | Remove a directory with its contents. |
| rm -i | Ask before removing a file. Good to use with the -r option. |
| mkdir | Make a directory. |
| rmdir | Remove an empty directory. |
Files and directory Permissions
Command Action chown Change ownership chgrp Change group chmod Change permissions
