Linux File Management Less

Less more than more command English intent

• Less

Command format

• less [参数] 文件

Command function

• The less tool is also a tool for paging through files or other output, which is a very powerful tool for Linux to view the contents of a file. The usage of less is more resilient than more. In more, we have no way to turn front, can only look back, but if use less, you can use [Pageup][pagedown] and other key functions to go to look at the file, more easily used to view the contents of a file! In addition, in less you can have more search function, not only to search down, but also to search upward.

Common parameters

• -B buffer size > Set buffer size

  -E When the file is displayed, automatically leave

  -f forcing special files to open, such as peripheral code, directories, and binaries

  -G only flags the last keyword to search

  -I ignore search case

  -M show percentages similar to more commands

  -n display line numbers per line

  -o filename > Save the less output in the specified file < /p>

  -Q do not use a warning tone

  -S show continuous empty line

  -S line too long will be out of the partial discard

  -X number > To display the TAB key as a specified number space

  /String : Search down the function of "string"

  ? string : Search Up "string" function

  n : Repeat previous search (with/or?)

  n : Reverse Duplicate previous search (with/or?)

  b Turn back page

  D turn half page back

  H Display Help interface

  Q exit less command

  u forward scroll half page

  y scrolls forward one line

  spacebar scrolling a line

  enter scroll a page

  [PageDown] : Scroll down one page

  [PageUp] : Flipping up one page

Common Example Example 1

PS View process information and display with less pagingps -ef | less

Example 2

View command history usage records and display with less paging

Example 3

Browse Multiple Files

Common commands

1. Full Screen navigation

   ctrl + F - 向前移动一屏

   ctrl + B - 向后移动一屏

   ctrl + D - 向前移动半屏

   ctrl + U - 向后移动半屏

2. Single-line navigation

   j - 向前移动一行

   k - 向后移动一行

3. Other navigation

   G - 移动到最后一行

   g - 移动到第一行

   q / ZZ - 退出 less 命令

4. Other useful commands

   v - 使用配置的编辑器编辑当前文件

   h - 显示 less 的帮助文档

   &pattern - 仅显示匹配模式的行，而不是整个文件

5. Tag Navigation

   When you use less to view large files, you can mark them in any one place, and you can navigate to the text location labeled with a specific tag by command:

   ma - 使用 a 标记文本的当前位置

   a - 导航到标记 a 处

Linux file Management less