Difference between revisions of "This Is Your Brain On Informatics: Linux"

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Command Description
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Linux is a powerful developer operating system that can be quite confusing at times.  This can include but is not limited to using the system (?), setting up a network, and finding important files.  Please see below for help on various subjects in Linux.
*cat [filename] Display file’s contents to the standard output device (usually your monitor).
 
  
*cd /directorypath Change to directory.
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*[[This Is Your Brain On Informatics: Linux Commands|Using the System]]
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*[[This Is Your Brain On Informatics: Common Pathnames|Common Pathnames]]
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*[[This Is Your Brain On Informatics: Network|Setting up the Network]]
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*[[This Is Your Brain On Informatics: DenyHosts|Working with DenyHosts]]
  
*chmod [options] mode filename Change a file’s permissions.
 
  
*chown [options] filename Change who owns a file.
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{{This Is Your Brain On Informatics}}
  
*clear Clear a command line screen/window for a fresh start.
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[[Category:This Is Your Brain On Informatics]]
 
 
*cp [options] source destination Copy files and directories.
 
 
 
*date [options] Display or set the system date and time.
 
 
 
*df [options] Display used and available disk space.
 
 
 
*du [options] Show how much space each file takes up.
 
 
 
*file [options] filename Determine what type of data is within a file.
 
 
 
*find [pathname] [expression] Search for files matching a provided pattern.
 
 
 
*grep [options] pattern [filesname] Search files or output for a particular pattern.
 
 
 
*kill [options] pid Stop a process. If the process refuses to stop, use kill -9 pid.
 
 
 
*less [options] [filename] View the contents of a file one page at a time.
 
 
 
*ln [options] source [destination] Create a shortcut.
 
 
 
*locate filename Search a copy of your filesystem for the specified filename.
 
 
 
*lpr [options] Send a print job.
 
 
 
*ls [options] List directory contents.
 
 
 
*/man [command] Display the help information for the specified command.
 
 
 
*mkdir [options] directory Create a new directory.
 
 
 
*mv [options] source destination Rename or move file(s) or directories.
 
 
 
*passwd [name [password]] Change the password or allow (for the system administrator) to
 
change any password.
 
 
 
*ps [options] Display a snapshot of the currently running processes.
 
 
 
*pwd Display the pathname for the current directory.
 
 
 
*rm [options] directory Remove (delete) file(s) and/or directories.
 
 
 
*rmdir [options] directory Delete empty directories.
 
 
 
*ssh [options] user@machine Remotely log in to another Linux machine, over the network.
 
 
*Leave an ssh session by typing exit
 
 
 
*su [options] [user [arguments]] Switch to another user account.
 
 
 
*tail [options] [filename] Display the last n lines of a file (the default is 10).
 
 
 
*tar [options] filename Store and extract files from a tarfile (.tar) or tarball
 
(.tar.gz or .tgz).
 
 
 
*top Displays the resources being used on your system. Press q to exit.
 
 
 
*touch filename Create an empty file with the specified name.
 
 
 
*who [options] Display who is logged on.
 

Latest revision as of 02:29, 19 March 2014

Linux is a powerful developer operating system that can be quite confusing at times. This can include but is not limited to using the system (?), setting up a network, and finding important files. Please see below for help on various subjects in Linux.