linux命令4j,linux常用指令

最新推荐文章于 2023-08-21 21:30:51 发布

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最新推荐文章于 2023-08-21 21:30:51 发布

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文章标签： linux命令4j

本文介绍了在Linux系统中查找文件、查看进程与端口占用、检查系统版本、查看磁盘空间、计算目录大小以及删除文件和目录的常用命令。如find、locate用于查找文件，netstat和ps命令用于查看进程与端口，uname和cat /etc/issue展示系统信息，df-lh用于磁盘空间检查，du-lh则用于计算目录占用空间，最后提到了rm-f和rm-rf用于删除文件和目录。

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1、查找文件

(1)按名称查找文件

find -name / fileName /表示当前目录

locate filename

(2) 查找文件夹

find /(查找范围) -name '查找关键字' -type d

(3)按文件内容查找文件，在当前目录下

grep -rn “java” *

2、查看进程机端口号(已知端口号查看被哪个进程占用)

netstat -anp|grep '8080'

ps -ef|grep '18565'[root@app0 bin]# netstat -anp|grep '8080'

tcp 0 0 :::8080 :::* LISTEN 18565/java

[root@app0 bin]# ps -ef|grep '18565'

root 14346 13594 0 10:54 pts/1 00:00:00 grep 18565

root 18565 1 0 Dec19 ? 00:21:18 /opt/jdk1.7.0_80/bin/java -Dzookeeper.log.dir=/usr/local/zookeeper-3.5.1-alpha/bin/../logs -Dzookeeper.log.file=zookeeper-root-server-app0.log -Dzookeeper.root.logger=INFO,CONSOLE -XX:+HeapDumpOnOutOfMemoryError -XX:OnOutOfMemoryError=kill -9 %p -cp /usr/local/zookeeper-3.5.1-alpha/bin/../build/classes:/usr/local/zookeeper-3.5.1-alpha/bin/../build/lib/*.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/slf4j-log4j12-1.7.5.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/slf4j-api-1.7.5.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/servlet-api-2.5-20081211.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/netty-3.7.0.Final.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/log4j-1.2.16.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/jline-2.11.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/jetty-util-6.1.26.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/jetty-6.1.26.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/javacc.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/jackson-mapper-asl-1.9.11.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/jackson-core-asl-1.9.11.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../lib/commons-cli-1.2.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../zookeeper-3.5.1-alpha.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../src/java/lib/*.jar:/usr/local/zookeeper-3.5.1-alpha/bin/../conf::/opt/jdk1.7.0_80/lib/dt.jar:/opt/jdk1.7.0_80/lib/tools.jar:/opt/jdk1.7.0_80/jre/lib -Xmx1000m -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.local.only=false org.apache.zookeeper.server.quorum.QuorumPeerMain /usr/local/zookeeper-3.5.1-alpha/bin/../conf/zoo.cfg

3、查看linux版本

(1)输入"uname -a ",可显示电脑以及操作系统的相关信息

(2)"cat /proc/version",说明正在运行的内核版本。

(3)"cat /etc/issue", 显示的是发行版本信息[root@app0 local]# uname -a

Linux app0 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

[root@app0 local]# cat /proc/version

Linux version 2.6.32-431.el6.x86_64 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) ) #1 SMP Fri Nov 22 03:15:09 UTC 2013

[root@app0 local]# cat /etc/issue

CentOS release 6.5 (Final)

Kernel \r on an \m

4、查看磁盘空间大小

df -lh[root@app0 log]# df -lh

Filesystem Size Used Avail Use% Mounted on

/dev/mapper/vg_winsmoney-lv_root 193G 172G 12G 94% /

tmpfs 2.9G 0 2.9G 0% /dev/shm

/dev/sda1 485M 33M 427M 8% /boot

5、du

du -sh : 查看当前目录总共占的容量

du -lh 目录名：查看目录名机器所在子目录分别占用空间[root@app0 jajaying]# du -sh