在Linux系统中,当我们需要在上面查看文件的时候,我们需要分页显示,这个时候就可以用到这个more命令。
more 命令类似 cat ,不过会以一页一页的形式显示,更方便使用者逐页阅读,而最基本的指令就是按空白键(space)就往下一页显示,按 b 键就会往回(back)一页显示。
使用more命令,只需要在命令的后面跟上文件名称即可
more fileName
看下面这个实例
[root@xtgfgggff logs]# more catalina.2019-08-19.log Aug 19, 2019 1:32:39 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 1:55:48 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 2:03:11 AM org.apache.catalina.core.StandardServer await WARNING: StandardServer.await: Invalid command '' received Aug 19, 2019 2:18:36 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 2:39:43 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 3:00:38 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 3:36:27 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 7:15:48 PM org.apache.catalina.core.StandardServer await INFO: A valid shutdown command was received via the shutdown port. Stopping the Server instance. Aug 19, 2019 7:15:48 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["http-bio-80"] Aug 19, 2019 7:15:48 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["ajp-bio-8009"] Aug 19, 2019 7:15:48 PM org.apache.catalina.core.StandardService stopInternal INFO: Stopping service Catalina Aug 19, 2019 7:15:48 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a m emory leak, the JDBC Driver has been forcibly unregistered. Aug 19, 2019 7:15:48 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [] appears to have started a thread named [Timer-0] but has failed to stop it. This is very likely to create a memory leak. Aug 19, 2019 7:15:48 PM --More--(6%)
查看下一行,请按回车键
查看下一屏,请按空格键
返回查看上一屏,请按b键
退出more命令,请按q键
more catalina.2019-08-19.log -20 +/2019
参数说明:
-num 一次显示的行数
+/pattern 在每个文档显示前搜寻该字串(pattern),然后从该字串之后开始显示
[root@xtgfgggff logs]# more catalina.2019-08-19.log -20 +/2019 :::::::::::::: catalina.2019-08-19.log :::::::::::::: Aug 19, 2019 1:32:39 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 1:55:48 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 2:03:11 AM org.apache.catalina.core.StandardServer await WARNING: StandardServer.await: Invalid command '' received Aug 19, 2019 2:18:36 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 2:39:43 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 3:00:38 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 3:36:27 AM org.apache.coyote.http11.AbstractHttp11Processor process INFO: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. Aug 19, 2019 7:15:48 PM org.apache.catalina.core.StandardServer await INFO: A valid shutdown command was received via the shutdown port. Stopping the Server instance. Aug 19, 2019 7:15:48 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["http-bio-80"] Aug 19, 2019 7:15:48 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["ajp-bio-8009"] Aug 19, 2019 7:15:48 PM org.apache.catalina.core.StandardService stopInternal INFO: Stopping service Catalina Aug 19, 2019 7:15:48 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a m emory leak, the JDBC Driver has been forcibly unregistered. --More--(5%)
2.1:使用more基本查看命令
more catalina.2019-08-19.log
2.2:按下V键,调用vi编辑器
结果:--More--(5%)看不见了,进入了vim模式
2.3:输入/,后面在跟你需要搜索的字符串。
/2019
2.4:然后按下回车,就搜到你要的字符串了,按n是匹配当前文本的下一个字符串
2.5:退出vim模式,按Esc键,输入:q 就可以退出vim,返回more命令格式
从第 20 行开始显示 catalina.2019-08-19.log之文档内容。
more +20 catalina.2019-08-19.log
+num 从第 num 行开始显示
查看catalina.2019-08-19.log之文档内容,当前屏幕只显示20条
more -20 catalina.2019-08-19.log
-num 一次显示的行数
当我们按下空格键的时候,会显示下20行的内容,但是屏幕终端一共就显示了40行的内容,不利于查看,因为刚刚的20行内容我们已经看到过了。添加-c参数
more -20 -c catalina.2019-08-19.log
按下空格键,屏幕终端每次都只会显示20条。
Aug 19, 2019 7:15:48 PM org.apache.catalina.core.StandardServer await INFO: A valid shutdown command was received via the shutdown port. Stopping the Server instance. Aug 19, 2019 7:15:48 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["http-bio-80"] Aug 19, 2019 7:15:48 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["ajp-bio-8009"] Aug 19, 2019 7:15:48 PM org.apache.catalina.core.StandardService stopInternal INFO: Stopping service Catalina Aug 19, 2019 7:15:48 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a m emory leak, the JDBC Driver has been forcibly unregistered. Aug 19, 2019 7:15:48 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [] appears to have started a thread named [Timer-0] but has failed to stop it. This is very likely to create a memory leak. Aug 19, 2019 7:15:48 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [] appears to have started a thread named [com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0] but has failed to stop it. This is very likely to create a memory leak. Aug 19, 2019 7:15:48 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [] appears to have started a thread named [com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1] but has failed to stop it. This is very likely to create a memory leak. Aug 19, 2019 7:15:48 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads --More--(7%)
-c 显示内容再清除其他旧资料
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