The more command, which functions like cat, the Cat command is the entire contents of the file displayed on the screen from top to bottom. More will be a page-by-page display to facilitate users to read pages, and the most basic instruction is to press the blank key (space) on the next page, press the B key will be back to a page, but also the function of the search string. The more command reads the file backwards from the front, so it loads the entire file at startup.
1. Command format:
more [-DLFPCSU] [-num] [+/pattern] [+ linenum] [file ...]
2. Command function:
The more commands and the cat function are the same view of the contents of the file, but the difference is that more can be viewed by the page to view the contents of the file, but also support the function of direct jump.
3. Command parameters:
+n starting from joys N rows
-N defines the screen size as n rows
+/pattern searches for the string before each file is displayed, and then starts from the first two lines of the string
-C clear the screen from the top and then display
-D hint "press space to continue, ' Q ' To quit (press SPACEBAR to continue, pressing Q key to exit)", disable the ringing function
-L ignores Ctrl+l (page break) characters
-p to page a file by clearing the window instead of scrolling, similar to the-C option
-S displays a contiguous number of empty rows as a row
-U Remove the line from the contents of the file
4. Common Operation Commands:
Enter down n rows, which need to be defined. Default is 1 rows
CTRL+F Scroll down one screen
Space bar scroll down one screen
Ctrl+b Back to previous screen
= Output the line number of the current line
: F output File name and line number of the current line
V Call VI Editor
command to invoke the shell and execute the command
Q Exit More
5. Command instance:
Example 1: Display the contents of the file from line 3rd
Command:
More +3 Log2012.log
Output:
[Root@localhost test]# Cat Log2012.log
2012-01
2012-02
2012-03
2012-04-day1
2012-04-day2
2012-04-day3
======[root@localhost test]# more +3 Log2012.log
2012-03
2012-04-day1
2012-04-day2
2012-04-day3
======[root@localhost test]#
Example 2: Find the first line from a file with the "Day3" string, and start displaying the output from the first two lines there
Command:
More +/day3 Log2012.log
Output:
[Root@localhost test]# more +/day3 Log2012.log
... skipping
2012-04-day1
2012-04-day2
2012-04-day3
2012-05
2012-05-day1
======[root@localhost test]#
Example 3: Set the number of rows per screen
Command:
More-5 Log2012.log
Output:
[Email protected] test]# more-5 Log2012.log
2012-01
2012-02
2012-03
2012-04-day1
2012-04-day2
Description
As shown, the bottom of the screen shows the content of the total number of files in proportion, press CTRL+F or SPACEBAR will display the next screen 5 content, the percentage will also change.
Example 4: Column A directory of files, because the content is too much, we should learn to use more to page display. This has to do with plumbing | Combined.
Command:
Ls-l | More-5
Output:
[Email protected] test]# Ls-l | More-5
Total 36
-rw-r--r--1 root root 308 11-01 16:49 Log2012.log
-rw-r--r--1 root root 10-28 16:54 Log2013.log
-rw-r--r--1 root root 127 10-28 16:51 Log2014.log
lrwxrwxrwx 1 root root 7 10-28 15:18 log_link.log log.log
-rw-r--r--1 root root 10-28 17:02 log.log
-rw-r--r--1 root root notoginseng 10-28 17:07 log.txt
Drwxr-xr-x 6 root root 4096 10-27 01:58 SCF
DRWXRWXRWX 2 root root 4096 10-28 14:47 test3
DRWXRWXRWX 2 root root 4096 10-28 14:47 test4
Description
Each page shows 5 file information, press CTRL+F or SPACEBAR will display the next 5 file information.
Linux Learning Materials-more command