more命令，功能类似cat，cat命令是整个文件内容从上到下显示在屏幕上的。more会以一页一页的显示方便使用者逐页浏览，而最基本的指令就是按空白键就往下一页显示，按b键就会往回一页显示，而且还有搜索字符串的功能。more命令从前向后读取文件，因此在启动时就加载整个文件。
【命令格式】
more[-dlfpcsu][-num][+/pattern][+linenum][file ...]
【命令功能】
more命令和cat的功能一样都是查看文件中的内容，但是有所不同的是more可以按页来查看文件的内容，还支持直接跳转行等功能。
【命令参数】
+n 从第n行开始显示
-n 定义屏幕大小为n行
+/pattern 在每个档案显示前搜索该字串(pattern)，然后从该字串前两行之后开始显示
-c 从顶部清屏，然后显示
-d 提示“Press space to continue，‘q’ to quit”，禁用响铃功能
-l 忽略Ctrl+l（换页）字符
-p 通过清除窗口而不是滚屏来对文件进行换页，与-c选项相似
-s 把连续的多个空格显示为一行
-u 把文件内容中的下划线去掉
【常用操作命令】
Enter 向下n行，需要定义。默认为1行
Ctrl+F 向下滚动一屏
空格键 向下滚动一屏
ctrl+B 返回上一屏
= 输出当前行的行号
:f 输出文件名和当前行的行号
V 调用vi编辑器
!命令 调用shell，并执行命令
q 退出more
【实例展示】
每屏以三行的形式进行显示：
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[root@node1 ~]
# more -3 my.cnf
[mysqld]
datadir=
/var/lib/mysql
socket=
/var/lib/mysql/mysql
.sock
--More--(25%)
#显示文本进度
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搜索文本中出现的第一个#，并显示输出：
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[root@node1 ~]
# more +/# my.cnf
...skipping
#输出标示
socket=
/var/lib/mysql/mysql
.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks #出现的第一个#号，显示前两行之后的内容
symbolic-links=0
[mysqld_safe]
log-error=
/var/log/mysqld
.log
pid-
file
=
/var/run/mysqld/mysqld
.pid
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与管道结合进行分页显示：
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[root@node1 ~]
# cat test.log | more
PING 172.16.18.6 (172.16.18.6) 56(84) bytes of data.
64 bytes from 172.16.18.6: icmp_seq=1 ttl=64
time
=0.407 ms
64 bytes from 172.16.18.6: icmp_seq=2 ttl=64
time
=0.559 ms
64 bytes from 172.16.18.6: icmp_seq=3 ttl=64
time
=0.485 ms
64 bytes from 172.16.18.6: icmp_seq=4 ttl=64
time
=0.595 ms
64 bytes from 172.16.18.6: icmp_seq=5 ttl=64
time
=0.610 ms
64 bytes from 172.16.18.6: icmp_seq=6 ttl=64
time
=0.574 ms
64 bytes from 172.16.18.6: icmp_seq=7 ttl=64
time
=0.887 ms
64 bytes from 172.16.18.6: icmp_seq=8 ttl=64
time
=0.549 ms
64 bytes from 172.16.18.6: icmp_seq=9 ttl=64
time
=0.447 ms
64 bytes from 172.16.18.6: icmp_seq=10 ttl=64
time
=0.543 ms
64 bytes from 172.16.18.6: icmp_seq=11 ttl=64
time
=0.552 ms
64 bytes from 172.16.18.6: icmp_seq=12 ttl=64
time
=0.519 ms
64 bytes from 172.16.18.6: icmp_seq=13 ttl=64
time
=0.627 ms
64 bytes from 172.16.18.6: icmp_seq=14 ttl=64
time
=0.482 ms
64 bytes from 172.16.18.6: icmp_seq=15 ttl=64
time
=0.560 ms
64 bytes from 172.16.18.6: icmp_seq=16 ttl=64
time
=0.559 ms
64 bytes from 172.16.18.6: icmp_seq=17 ttl=64
time
=0.561 ms
64 bytes from 172.16.18.6: icmp_seq=18 ttl=64
time
=0.565 ms
64 bytes from 172.16.18.6: icmp_seq=19 ttl=64
time
=0.528 ms
64 bytes from 172.16.18.6: icmp_seq=20 ttl=64
time
=0.520 ms
64 bytes from 172.16.18.6: icmp_seq=21 ttl=64
time
=0.620 ms
64 bytes from 172.16.18.6: icmp_seq=22 ttl=64
time
=0.542 ms
64 bytes from 172.16.18.6: icmp_seq=23 ttl=64
time
=0.573 ms
64 bytes from 172.16.18.6: icmp_seq=24 ttl=64
time
=0.545 ms
--More--
#这种显示方式会依照当前终端的显示空间来显示
[root@node1 ~]
# cat test.log | more -5
PING 172.16.18.6 (172.16.18.6) 56(84) bytes of data.
64 bytes from 172.16.18.6: icmp_seq=1 ttl=64
time
=0.407 ms
64 bytes from 172.16.18.6: icmp_seq=2 ttl=64
time
=0.559 ms
64 bytes from 172.16.18.6: icmp_seq=3 ttl=64
time
=0.485 ms
64 bytes from 172.16.18.6: icmp_seq=4 ttl=64
time
=0.595 ms
--More--
#这种是依照每页5行的方式进行显示
这种情况下可以使用Ctrl+F或空格键切换至下个五行，但是使用Ctrl+F会跳一行再进行显示下五行，而使用空格键会直接显示下个五行。使用回车键则直接会显示下一行。
#########使用空格键切换的情况#######
[root@node1 ~]
# cat test.log | more -5
PING 172.16.18.6 (172.16.18.6) 56(84) bytes of data.
64 bytes from 172.16.18.6: icmp_seq=1 ttl=64
time
=0.407 ms
64 bytes from 172.16.18.6: icmp_seq=2 ttl=64
time
=0.559 ms
64 bytes from 172.16.18.6: icmp_seq=3 ttl=64
time
=0.485 ms
64 bytes from 172.16.18.6: icmp_seq=4 ttl=64
time
=0.595 ms
64 bytes from 172.16.18.6: icmp_seq=5 ttl=64
time
=0.610 ms
64 bytes from 172.16.18.6: icmp_seq=6 ttl=64
time
=0.574 ms
64 bytes from 172.16.18.6: icmp_seq=7 ttl=64
time
=0.887 ms
64 bytes from 172.16.18.6: icmp_seq=8 ttl=64
time
=0.549 ms
64 bytes from 172.16.18.6: icmp_seq=9 ttl=64
time
=0.447 ms
##########使用Ctrl+F切换的情况######
64 bytes from 172.16.18.6: icmp_seq=8 ttl=64
time
=0.549 ms
64 bytes from 172.16.18.6: icmp_seq=9 ttl=64
time
=0.447 ms
...skipping one line
#跳一行
64 bytes from 172.16.18.6: icmp_seq=11 ttl=64
time
=0.552 ms
64 bytes from 172.16.18.6: icmp_seq=12 ttl=64
time
=0.519 ms
64 bytes from 172.16.18.6: icmp_seq=13 ttl=64
time
=0.627 ms
64 bytes from 172.16.18.6: icmp_seq=14 ttl=64
time
=0.482 ms
64 bytes from 172.16.18.6: icmp_seq=15 ttl=64
time
=0.560 ms
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本文转自 z永 51CTO博客，原文链接:http://blog.51cto.com/pangge/1337795
