linux系统使用lsof命令"-bash: lsof: command not found"

朴灿烈づ我的快乐病毒、 2021-09-28 13:48 866阅读 0赞

在redhat系统下想使用lsof命令查看应用端口占用情况

[root@photo720 ~]# uname -a
    Linux photo720 3.10.0-514.26.2.el7.x86_64 #1 SMP Tue Jul 4 15:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
    [root@photo720 ~]# lsof -i:80
    -bash: lsof: command not found
    [root@photo720 ~]#

发现lsof命令使用不了，因为没有安装lsof  
安装命令如下：  
yum install -y lsof

[root@photo720 ~]# yum install -y lsof
    Loaded plugins: fastestmirror
    Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
    base                                                                            | 3.6 kB  00:00:00     
    epel                                                                            | 4.7 kB  00:00:00     
    extras                                                                          | 3.4 kB  00:00:00     
    updates                                                                         | 3.4 kB  00:00:00     
    (1/4): extras/7/x86_64/primary_db                                               | 201 kB  00:00:00     
    (2/4): epel/x86_64/updateinfo                                                   | 992 kB  00:00:00     
    (3/4): epel/x86_64/primary_db                                                   | 6.7 MB  00:00:00     
    (4/4): updates/7/x86_64/primary_db                                              | 4.2 MB  00:00:00     
    Determining fastest mirrors
    Resolving Dependencies
    --> Running transaction check
    ---> Package lsof.x86_64 0:4.87-6.el7 will be installed
    --> Finished Dependency Resolution
    
    Dependencies Resolved
    
    =======================================================================================================
     Package               Arch                    Version                     Repository             Size
    =======================================================================================================
    Installing:
     lsof                  x86_64                  4.87-6.el7                  base                  331 k
    
    Transaction Summary
    =======================================================================================================
    Install  1 Package
    
    Total download size: 331 k
    Installed size: 927 k
    Downloading packages:
    lsof-4.87-6.el7.x86_64.rpm                                                      | 331 kB  00:00:00     
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
      Installing : lsof-4.87-6.el7.x86_64                                                              1/1 
      Verifying  : lsof-4.87-6.el7.x86_64                                                              1/1 
    
    Installed:
      lsof.x86_64 0:4.87-6.el7                                                                             
    
    Complete!

测试

[root@photo720 ~]# lsof -i:80
    COMMAND     PID USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
    AliYunDun  3598 root   22u  IPv4 3670184      0t0  TCP photo720:34692->100.100.30.25:http (ESTABLISHED)
    nginx     14912 root   10u  IPv4 2972890      0t0  TCP *:http (LISTEN)
    nginx     14912 root   13u  IPv4 3691002      0t0  TCP photo720:http->116.24.67.35:eli (ESTABLISHED)
    nginx     23692 root   10u  IPv4 2972890      0t0  TCP *:http (LISTEN)