more和less命令详细解释

1、more的基本用法：

more /root/test_mail.html

如果内容不足一屏幕，显示完直接退出，如果有多屏，则从头开始显示。
下一页：空白键,或者f 意思是forward,向前；
下一行：enter;
上一页：b 意思是backward；
输入v，可以直接编辑当前行！这个牛逼了！

2、less的基本用法：

这个比more更牛逼了，尤其是匹配模式，还可以高亮匹配！！！这个特性more里面是没有的。所以多用这个吧，完整说明如下：

                   SUMMARY OF LESS COMMANDS      Commands marked with * may be preceded by a number, N.      Notes in parentheses indicate the behavior if N is given.      A key preceded by a caret indicates the Ctrl key; thus ^K is ctrl-K.  h  H                 Display this help.  q  :q  Q  :Q  ZZ     Exit. ---------------------------------------------------------------------------                           MOVING  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.                                  SEARCHING  /pattern          *  Search forward for (N-th) matching line.  ?pattern          *  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.  &pattern          *  Display only matching lines        ---------------------------------------------------        A search pattern may be preceded 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. ---------------------------------------------------------------------------                           JUMPING  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 <c1> <c2>  *  Find close bracket <c2>.  ESC-^B <c1> <c2>  *  Find open bracket <c1>         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<letter>            Mark the current position with <letter>.  '<letter>            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 ---------------------------------------------------------------------------                        CHANGING FILES  :e [file]            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. ---------------------------------------------------------------------------                    MISCELLANEOUS COMMANDS  -<flag>              Toggle a command line option [see OPTIONS below].   --<name>             Toggle a command line option, by name.  _<flag>              Display the setting of a command line option.  __<name>             Display the setting of an option, by name.  +cmd                 Execute the less cmd each time a new file is examined.  !command             Execute the shell command with $SHELL.  |Xcommand            Pipe file between current pos & mark X to shell command.  v                    Edit the current file with $VISUAL or $EDITOR.  V                    Print version number of "less". ---------------------------------------------------------------------------                           OPTIONS        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 preceded by --.  -?  ........  --help                  Display help (from command line).  -a  ........  --search-skip-screen                  Search skips current screen.  -A  ........  --SEARCH-SKIP-SCREEN                  Search starts just after target line.  -b [N]  ....  --buffers=[N]                  Number of buffers.  -B  ........  --auto-buffers                  Don't automatically allocate buffers for pipes.  -c  -C  ....  --clear-screen --CLEAR-SCREEN                  Repaint by clearing rather than scrolling.  -d  ........  --dumb                  Dumb terminal.  -D [xn.n]  .  --color=xn.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.  --old-bot                  Revert to the old bottom of screen behavior.  -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 [file]  .  --lesskey-file=[file]                  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  ........  --line-numbers                  Don't use line numbers.  -N  ........  --LINE-NUMBERS                  Use line numbers.  -o [file]  .  --log-file=[file]                  Copy to log file (standard input only).  -O [file]  .  --LOG-FILE=[file]                  Copy to log file (unconditionally overwrite).  -p [pattern]  --pattern=[pattern]                  Start at pattern (from command line).  -P [prompt]   --prompt=[prompt]                  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 (truncate) long lines rather than wrapping.  -t [tag]  ..  --tag=[tag]                  Find a tag.  -T [tagsfile] --tag-file=[tagsfile]                  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.  -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 termcap keypad init/deinit strings.      ........  --follow-name                  The F command changes files if the input file is renamed.      ........  --use-backslash                  Subsequent options use backslash as escape char. ---------------------------------------------------------------------------                          LINE EDITING        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. ctrl-RightArrow  ESC-RightArrow  ESC-w     Move cursor right one word. ctrl-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. ctrl-BACKSPACE   ESC-BACKSPACE             Delete word to left of cursor. ctrl-DELETE      ESC-DELETE      ESC-X     Delete word under cursor. ctrl-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. ctrl-L                                     Complete filename, list all.