Linux Command

  Create your own name for a command
  print machine architecture
  ash command interpreter (shell)
  pattern scanning and processing language

  Remove directory and suffix from a file name
  GNU Bourne-Again Shell
  Command interpreter (Shell)
  Command line calculator
  Unzip .bz2 files

  
  Concatenate a file print it to the screen
  Change the group designation of a file
  Change file permissions
  Change the owner of a file
  Compress an image file to a JPEG file
  Clear terminal screen (command line)
  Compare two sorted files
  Formatting the display of text in a terminal
  Copy command
  Copy files to and from archives
  C Shell
cut  Print selected parts of lines to standard output

  
  Display date and time
  Command line calculator
  Show amount of disk space free
  Determine difference between two files
  Determine difference between 3 files
  Interrogate DNS name servers
  Decompress a JPEG file to an image file
  Print or control the kernel ring buffer (print out bootup messages)
  Show the system's DNS domain name
  Run an executable with an arbitrary argv
  Show or set the system's NIS/YP domain name
  Converts plain text files in DOS/MAC format to UNIX format
  Show disk useage
  Write keyboard driver's translation tables to std output

  
  Display a line of text
  Line-oriented text editor
  Print lines matching a pattern
  A text mode WWW browser (supports frames)
  Dislay the path
  Start Vim in ex mode
  Eject media from device ( command line )

  
  Display prime factors of a number
  Exit with a status code indicating failure
  The fdisk command with usage examples
  Variant of grep
  Find a file
  Displays information about the system users
  Try to fix common PostScript problems that break postprocessing
  Display free memory

  
  Search for a pattern using regular expression
  See the tar command
  Unzip .gz files
  Compress using Lempel-Ziv coding (LZ77)

  
  Stop the system
  Get/set harddisk parameters
  Print the first 10 lines of a file to standard output
  Show or set the system's host name
  Display entire command history
  Change history size
  Start Apache

  
  Describes the format and characteristics of image files.
  Print information for username, or the current user
  Display network and hardware addresses
  Gawk with include files
  Calculate IP information for a host

  
  Report or set the keyboard mode (RAW, MEDI- UMRAW or XLATE)
  Terminate a process

  
  Show listing of last logged in users
  Formats and prints the contents of the last login log /var/log/lastlog file
  Call the link function to create a link to a file
  See elinks
   Create a link to the specified TARGET with optional LINK_NAME
  Load keyboard translation tables
  Locate a file
  Sign on
  Displays any lines in file which contain "string" as a prefix.
  List directory contents
  List loaded kernel modules
  Command to start the Lynx browser

  
  Converts plain text files in DOS/MAC format to UNIX format
  A mail processing system, which has a command syntax like ed
  Display a particular manual entry
  Manweb is part of the Netpbm package
  Display the amount of space occupied by an MSDOS directory
  Create a directory
  Make a filesystem on a drive
  Make block or character special files
  Make temporary filename (unique)
  Page through text one screenful at a time.
  Mount a filesystem/device
  Control magnetic tape drive operation
  Move and / or rename files

N 
  Follow a pathname until a terminal point is found
  An enhanced free Pico clone
  arbitrary TCP and UDP connections and listens
  Browser program for the File Transfer Protocol
  nedit-nc is the client interface to the NEdit text editor
  Display verbose info about network processes and ports
  Run a command with modified priority
  Show or set system's NIS/YP domain name
  query internet domain name servers

  Merge lines of files
  Generate a PostScript page list of a PDF document
  Convert PDF file "input.pdf" to PostScript(tm) in "output.ps"
  Print contents of the 'Info' dictionary (plus some other useful information) from a PDF file
  Convert pdf files to plain text
  (start) Practical Extraction and Report Language
  The profiling version of gawk
  Text editor that comes with Pine (from the University of Washington)
  Email program used by The University of Washington
  Ping
  Send ICMP ECHO_REQUEST to network hosts
  A lightweight 'finger' program;
  Format for printing
  Processes running
  Ghostscript translator from PostScript or PDF to ASCII
  Generate conforming Encapsulated PostScript
  Obsolete shell script for the PSfrag system
  Convert PostScript to PDF 1.2 (Acrobat 3 and later compatible) using ghostscript
  Convert PostScript to PDF 1.3 (Acrobat 4 and later compatible) using ghostscript
  Use ps2pdfwr: Convert PostScript to PDF without specifying Compatibility Level, using ghostscript
  Convert PostScript to PDF using ghostscript
  Convert PostScript to PDF without specifying Compatibility Level, using ghostscript
  creates a TeX pkfont from a type1 PostScript font
  ps2ps uses gs to convert PostScript(tm) file "input.ps" to simpler and (usually) faster PostScript in "output.ps"
  Rearranges pages from a PostScript document into "signatures" for printing books or booklets
  Print Working Directory

  
  display disk usage and limits

  
  Xterm window size
  Displays information about ELF files
  Stop the system, poweroff, reboot
   red is a restricted ed: it can only edit files in the current directory and cannot execute shell commands
  Rename files
  Remove a directory
  Remove files or directories
  rpm command options
  Sample script to create a search database for ht://Dig
  The GUI version of Vim in easy mode with restrictions
  Vi / Vim editor

  
  Stream editor
  Load EGA/VGA console screen font
  Set group id
  Get / set Linux serial port info
  Set user id
  Modified fdisk program
sftp  Secure file transfer protocol (ftp)
  Shell (BASH)
  Safely remove data from disk drive
  Delay for a specified amount of time
  Security Enhanced version of the GNU Locate
  Sort lines of a text file
ssh  Secure shell connection command
  change and print terminal line settings
  Unformatted output to terminal
  Become super user ( root )
  Graphical and text mode interface for choosing desktop environment
  Force changed blocks to disk, update the super block
ssh  Secure shell connection command

  
  Print the last 10 Lines of a file standard output
  Create an Archive
  Enhanced completely compatible version of the Berkeley UNIX C shell, csh
  Copy standard input to each file, and also to standard output
  User interface to the telnet protocol
  Run the specified program command with the given arguments
  Change file timestamps
  See tracepath
  Trace path to a network host discovering MTU along this path
  See traceroute
  Print the route packets take to network host
  Display file tree
  Exit with a status code indicating success
  Print name of terminal connected to standard output

  
  File creation mask / Bash builtins
  Detache file system(s) mentioned from file hierarchy
  Print system information ( kernel version )
  Put keyboard and console into Unicode (UTF-8) mode
  Undo the effect of unicode_start
  Call the unlink function to remove the specified file
  Remove duplicate lines from sorted file
  Update the slocate database
  Group id change
  User id change
  Unarchive ( untar ) a file
  Unzip .zip files
  Add new user
  Output who is currently logged in according to system records
  Sleep a given number of microseconds. default is 1

V  
  Start vim in read-only mode
  Start the vi editor

  
  Show who is logged on and what they are doing
  Word count of a file
  Non-interactive download of files from the Web
  Search the whatis database for complete words (command names)
  Locate a command or file
  Find command path
  Print effective userid
  show who is logged on
  Client for the whois service

  
  Start Xserver
  Portable Document Format (PDF) file viewer for X windows
  Change resolution running Xwindows ( command line )
  show or set the system's NIS/YP domain name
  Compress or expand files
  Compression and file packaging utility
  List detailed information about a ZIP archive