linux-01一些命令

没有netstat命令

-bash: netstat: command not found

运行

install net-tools``` 就OK了

## centos查看文件大小(ll -h)

[root@wpg-ja-dbs01 ~]# ll
total 8
drwxr-xr-x 2 root root 4096 Jul 7 09:16 jdk
drwxr-xr-x 2 root root 4096 Jul 7 16:05 mycat
[root@wpg-ja-dbs01 ~]# ll -h
total 8.0K
drwxr-xr-x 2 root root 4.0K Jul 7 09:16 jdk
drwxr-xr-x 2 root root 4.0K Jul 7 16:05 mycat
[root@wpg-ja-dbs01 ~]#
`