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===General Linux Command Info===
*Almost every single command should have an argument (an input for a function)
*A filename in Linux refers to both a file's name and a directory's name
===Common Linux Commands===
{| class="wikitable"
|-
! style="padding: 10px;"| Command
! style="padding: 10px;"| Syntax
! style="padding: 10px;"| Description
|-
| style="padding: 10px;"| cat
| style="padding: 10px;"| cat ''filename''
| style="padding: 10px;"| Display file’s contents to the standard output device (usually your monitor)
|-
| style="padding: 10px;"| cd
| style="padding: 10px;"| cd ''/pathname''
| style="padding: 10px;"| Change to the given directory
|-
|-
| catstyle="padding: 10px;"| chown| cat style="padding: 10px;"| chown ''private_owner:group_owner'' ''filename''| Display file’s contents to style="padding: 10px;"| Changes ownership of the standard output device (usually your monitor)file
|-
| cdstyle="padding: 10px;"| clear| cd ''/pathname''style="padding: 10px;"| clear| Change to style="padding: 10px;"| Clears the given directoryscreen by scrolling (does not delete anything)
|-
| chmod*style="padding: 10px;"| cp| chmod style="padding: 10px;"| cp ''options'' ''modesource'' ''filenamedestination''| Changes style="padding: 10px;"| Copies a file's permissions. from the source to the destination
|-
| chown*style="padding: 10px;"| find| chown style="padding: 10px;"| find ''private_owner:group_owner/pathname'' ''filenamestring''| Changes ownership of style="padding: 10px;"| Starts at the fileindicated directory and searches for the string in a filename
|-
| clearstyle="padding: 10px;"| grep| clearstyle="padding: 10px;"| grep ''options'' ''pattern'' ''filename''| Clears style="padding: 10px;"| Searches for the pattern in the screen by scrolling (does not delete anything)file
|-
| cpstyle="padding: 10px;"| ifconfig| cp ''options'' ''source'' ''destination''style="padding: 10px;"| ifconfig| Copies a file from the source to style="padding: 10px;"| Displays the destinationcurrent networks available and various information about them
|-
| findstyle="padding: 10px;"| ll| find style="padding: 10px;"| ll ''/pathname'' ''string''| Starts at style="padding: 10px;"| List Long: lists the details of the entire directory or file indicated directory and searches for the string in a filename
|-
| grepstyle="padding: 10px;"| ln| grep style="padding: 10px;"| ln ''options'' ''patternsource'' ''filenamedestination''| Searches style="padding: 10px;"| Link: creates a shortcut. Use -s for the pattern in the file''options'' to create a soft link (more capabilities)
|-
| llstyle="padding: 10px;"| ls| ll style="padding: 10px;"| ls ''/pathname''| List Longstyle="padding: lists the details of 10px;"| Lists the entire files and directories in a given directory or file indicated
|-
| lnstyle="padding: 10px;"| man| ln ''options'' ''sourcestyle="padding: 10px;"| man '' ''destinationcommand''| Linkstyle="padding: creates a shortcut. Use -s 10px;"| Opens the manual page for the ''options'' to create a soft link (more capabilities)given command
|-
| lsstyle="padding: 10px;"| mkdir| ls style="padding: 10px;"| mkdir ''options'/pathname' ''filename''| Lists style="padding: 10px;"| Makes a directory at the given location with the files and directories in a given directoryname
|-
| manstyle="padding: 10px;"| mv| man style="padding: 10px;"| mv ''options''command''source'' ''destination''| Opens style="padding: 10px;"| Moves a file or directory from the manual page for source to the given commanddestination
|-
| mkdirstyle="padding: 10px;"| [[This Is Your Brain On Informatics: Pico|pico]]| mkdir ''options'' style="padding: 10px;"| pico ''filename''| Makes a directory at style="padding: 10px;"| Opens the given location with file in the given namepico text editor
|-
| mvstyle="padding: 10px;"| pwd| mv ''options'' ''source'' ''destination''style="padding: 10px;"| pwd| Moves a file or directory from style="padding: 10px;"| Displays the source to pathname for the destinationcurrent directory
|-
| pwdstyle="padding: 10px;"| rm| pwdstyle="padding: 10px;"| rm ''options'' ''filename''| Displays style="padding: 10px;"| Removes the pathname given file. If -rf is used for the current options, a directoryand its roots will be removed as well
|-
| rmstyle="padding: 10px;"| ssh| rm style="padding: 10px;"| ssh ''options'' ''filenameuser@machine''| Removes style="padding: 10px;"| Remotely logs into the given file. If -rf is used for machine with the options, a directory and its roots will be removed as wellgiven user name
|-
| sshstyle="padding: 10px;"| sudo| ssh ''options'' style="padding: 10px;"| sudo ''user@machinecommand''| Remotely logs into the given machine with style="padding: 10px;"| Allows super user privileges for the given user namecommand (requires root password). sudo su allows login to root
|-
| sudostyle="padding: 10px;"| tar| sudo style="padding: 10px;"| tar -xzvf ''commandfilename''| Allows super user privileges for style="padding: 10px;"| Extracts files with the given command (requires root password)extension *.tar.gz or *. sudo su allows login to roottgz
|-
| tarstyle="padding: 10px;"| touch| tar -xzvfstyle="padding: 10px;"| touch ''filename''| Extracts files style="padding: 10px;"| Creates an empty file with the extension *.tar.gz or *.tgzgiven name
|-
| touchstyle="padding: 10px;"| wget| touch style="padding: 10px;"| wget ''filenameinternet address''| Creates an empty style="padding: 10px;"| Downloads a file with from a given nameinternet address
|-
|}
===*Notes on chmod===
'''chmod''' has several input options. Using a "+" and an "r", "w", and/or "x" will add read, write, or execute permissions respectively to the given file. A "-" will take these away. The other system is a binary system in which there are permissions for the private user, the group, and the public (other) given as 000 000 000 where each set of three 0's equals the private user, group, or public respectively. The first 0 in each set of 0's is for reading permission, the second for writing, and the third for executing. Because it is binary 100 000 000 (permission for the private user to read only) will be written as 400 in the command line (after translating the binary to decimal where 100 = 4)
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