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                       SSUUMMMMAARRYY OOFF LLEESSSS CCOOMMMMAANNDDSS
          Commands marked with * may be preceded by a number, _N.
          Notes in parentheses indicate the behavior if _N is given.
      h  H                 Display this help.
      q  :q  Q  :Q  ZZ     Exit.
     ---------------------------------------------------------------------------
                               MMOOVVIINNGG
      e  ^E  j  ^N  CR  *  Forward  one line   (or _N lines).
      y  ^Y  k  ^K  ^P  *  Backward one line   (or _N lines).
      f  ^F  ^V  SPACE  *  Forward  one window (or _N lines).
      b  ^B  ESC-v      *  Backward one window (or _N lines).
      z                 *  Forward  one window (and set window to _N).
      w                 *  Backward one window (and set window to _N).
      ESC-SPACE         *  Forward  one window, but don't stop at end-of-file.
      d  ^D             *  Forward  one half-window (and set half-window to _N).
      u  ^U             *  Backward one half-window (and set half-window to _N).
      ESC-)  RightArrow *  Left  one half screen width (or _N positions).
      ESC-(  LeftArrow  *  Right one half screen width (or _N positions).
      F                    Forward forever; like "tail -f".
      r  ^R  ^L            Repaint screen.
      R                    Repaint screen, discarding buffered input.
            ---------------------------------------------------
            Default "window" is the screen height.
            Default "half-window" is half of the screen height.
     ---------------------------------------------------------------------------
                              SSEEAARRCCHHIINNGG
      /_p_a_t_t_e_r_n          *  Search forward for (_N-th) matching line.
      ?_p_a_t_t_e_r_n          *  Search backward for (_N-th) matching line.
      n                 *  Repeat previous search (for _N-th occurrence).
      N                 *  Repeat previous search in reverse direction.
      ESC-n             *  Repeat previous search, spanning files.
      ESC-N             *  Repeat previous search, reverse dir. & spanning files.
      ESC-u                Undo (toggle) search highlighting.
      &_p_a_t_t_e_r_n          *  Display only matching lines
            ---------------------------------------------------
            Search patterns may be modified by one or more of:
            ^N or !  Search for NON-matching lines.
            ^E or *  Search multiple files (pass thru END OF FILE).
            ^F or @  Start search at FIRST file (for /) or last file (for ?).
            ^K       Highlight matches, but don't move (KEEP position).
            ^R       Don't use REGULAR EXPRESSIONS.
     ---------------------------------------------------------------------------
                               JJUUMMPPIINNGG
      g  <  ESC-<       *  Go to first line in file (or line _N).
      G  >  ESC->       *  Go to last line in file (or line _N).
      p  %              *  Go to beginning of file (or _N percent into file).
      t                 *  Go to the (_N-th) next tag.
      T                 *  Go to the (_N-th) previous tag.
      {  (  [           *  Find close bracket } ) ].
      }  )  ]           *  Find open bracket { ( [.
      ESC-^F _<_c_1_> _<_c_2_>  *  Find close bracket _<_c_2_>.
      ESC-^B _<_c_1_> _<_c_2_>  *  Find open bracket _<_c_1_> 
            ---------------------------------------------------
            Each "find close bracket" command goes forward to the close bracket 
              matching the (_N-th) open bracket in the top line.
            Each "find open bracket" command goes backward to the open bracket 
              matching the (_N-th) close bracket in the bottom line.
      m_<_l_e_t_t_e_r_>            Mark the current position with .
      '_<_l_e_t_t_e_r_>            Go to a previously marked position.
      ''                   Go to the previous position.
      ^X^X                 Same as '.
            ---------------------------------------------------
            A mark is any upper-case or lower-case letter.
            Certain marks are predefined:
                 ^  means  beginning of the file
                 $  means  end of the file
     ---------------------------------------------------------------------------
                            CCHHAANNGGIINNGG FFIILLEESS
      :e [_f_i_l_e]            Examine a new file.
      ^X^V                 Same as :e.
      :n                *  Examine the (_N-th) next file from the command line.
      :p                *  Examine the (_N-th) previous file from the command line.
      :x                *  Examine the first (or _N-th) file from the command line.
      :d                   Delete the current file from the command line list.
      =  ^G  :f            Print current file name.
     ---------------------------------------------------------------------------
                        MMIISSCCEELLLLAANNEEOOUUSS CCOOMMMMAANNDDSS
      -_<_f_l_a_g_>              Toggle a command line option [see OPTIONS below].
      --_<_n_a_m_e_>             Toggle a command line option, by name.
      __<_f_l_a_g_>              Display the setting of a command line option.
      ___<_n_a_m_e_>             Display the setting of an option, by name.
      +_c_m_d                 Execute the less cmd each time a new file is examined.
      !_c_o_m_m_a_n_d             Execute the shell command with $SHELL.
      |XX_c_o_m_m_a_n_d            Pipe file between current pos & mark XX to shell command.
      v                    Edit the current file with $VISUAL or $EDITOR.
      V                    Print version number of "less".
     ---------------------------------------------------------------------------
                               OOPPTTIIOONNSS
            Most options may be changed either on the command line,
            or from within less by using the - or -- command.
            Options may be given in one of two forms: either a single
            character preceded by a -, or a name preceeded by --.
      -?  ........  --help
                      Display help (from command line).
      -a  ........  --search-skip-screen
                      Forward search skips current screen.
      -A  ........  --SEARCH-SKIP-SCREEN
                      Forward search always skips target line.
      -b [_N]  ....  --buffers=[_N]
                      Number of buffers.
      -B  ........  --auto-buffers
                      Don't automatically allocate buffers for pipes.
      -c  ........  --clear-screen
                      Repaint by clearing rather than scrolling.
      -d  ........  --dumb
                      Dumb terminal.
      -D [_x_n_._n]  .  --color=_x_n_._n
                      Set screen colors. (MS-DOS only)
      -e  -E  ....  --quit-at-eof  --QUIT-AT-EOF
                      Quit at end of file.
      -f  ........  --force
                      Force open non-regular files.
      -F  ........  --quit-if-one-screen
                      Quit if entire file fits on first screen.
      -g  ........  --hilite-search
                      Highlight only last match for searches.
      -G  ........  --HILITE-SEARCH
                      Don't highlight any matches for searches.
      -h [_N]  ....  --max-back-scroll=[_N]
                      Backward scroll limit.
      -i  ........  --ignore-case
                      Ignore case in searches that do not contain uppercase.
      -I  ........  --IGNORE-CASE
                      Ignore case in all searches.
      -j [_N]  ....  --jump-target=[_N]
                      Screen position of target lines.
      -J  ........  --status-column
                      Display a status column at left edge of screen.
      -k [_f_i_l_e]  .  --lesskey-file=[_f_i_l_e]
                      Use a lesskey file.
      -K            --quit-on-intr
                      Exit less in response to ctrl-C.
      -L  ........  --no-lessopen
                      Ignore the LESSOPEN environment variable.
      -m  -M  ....  --long-prompt  --LONG-PROMPT
                      Set prompt style.
      -n  -N  ....  --line-numbers  --LINE-NUMBERS
                      Don't use line numbers.
      -o [_f_i_l_e]  .  --log-file=[_f_i_l_e]
                      Copy to log file (standard input only).
      -O [_f_i_l_e]  .  --LOG-FILE=[_f_i_l_e]
                      Copy to log file (unconditionally overwrite).
      -p [_p_a_t_t_e_r_n]  --pattern=[_p_a_t_t_e_r_n]
                      Start at pattern (from command line).
      -P [_p_r_o_m_p_t]   --prompt=[_p_r_o_m_p_t]
                      Define new prompt.
      -q  -Q  ....  --quiet  --QUIET  --silent --SILENT
                      Quiet the terminal bell.
      -r  -R  ....  --raw-control-chars  --RAW-CONTROL-CHARS
                      Output "raw" control characters.
      -s  ........  --squeeze-blank-lines
                      Squeeze multiple blank lines.
      -S  ........  --chop-long-lines
                      Chop long lines.
      -t [_t_a_g]  ..  --tag=[_t_a_g]
                      Find a tag.
      -T [_t_a_g_s_f_i_l_e] --tag-file=[_t_a_g_s_f_i_l_e]
                      Use an alternate tags file.
      -u  -U  ....  --underline-special  --UNDERLINE-SPECIAL
                      Change handling of backspaces.
      -V  ........  --version
                      Display the version number of "less".
      -w  ........  --hilite-unread
                      Highlight first new line after forward-screen.
      -W  ........  --HILITE-UNREAD
                      Highlight first new line after any forward movement.
      -x [_N[,...]]  --tabs=[_N[,...]]
                      Set tab stops.
      -X  ........  --no-init
                      Don't use termcap init/deinit strings.
                    --no-keypad
                      Don't use termcap keypad init/deinit strings.
      -y [_N]  ....  --max-forw-scroll=[_N]
                      Forward scroll limit.
      -z [_N]  ....  --window=[_N]
                      Set size of window.
      -" [_c[_c]]  .  --quotes=[_c[_c]]
                      Set shell quote characters.
      -~  ........  --tilde
                      Don't display tildes after end of file.
      -# [_N]  ....  --shift=[_N]
                      Horizontal scroll amount (0 = one half screen width)
          ........  --no-keypad
                      Don't send keypad init/deinit sequence.
          ........  --follow-name
                      The F command changes files if the input file is renamed.
     ---------------------------------------------------------------------------
                              LLIINNEE EEDDIITTIINNGG
            These keys can be used to edit text being entered 
            on the "command line" at the bottom of the screen.
     RightArrow                       ESC-l     Move cursor right one character.
     LeftArrow                        ESC-h     Move cursor left one character.
     CNTL-RightArrow  ESC-RightArrow  ESC-w     Move cursor right one word.
     CNTL-LeftArrow   ESC-LeftArrow   ESC-b     Move cursor left one word.
     HOME                             ESC-0     Move cursor to start of line.
     END                              ESC-$     Move cursor to end of line.
     BACKSPACE                                  Delete char to left of cursor.
     DELETE                           ESC-x     Delete char under cursor.
     CNTL-BACKSPACE   ESC-BACKSPACE             Delete word to left of cursor.
     CNTL-DELETE      ESC-DELETE      ESC-X     Delete word under cursor.
     CNTL-U           ESC (MS-DOS only)         Delete entire line.
     UpArrow                          ESC-k     Retrieve previous command line.
     DownArrow                        ESC-j     Retrieve next command line.
     TAB                                        Complete filename & cycle.
     SHIFT-TAB                        ESC-TAB   Complete filename & reverse cycle.
     CNTL-L                                     Complete filename, list all.
    
    



Designed by SanjuD(@ngineerbabu)