修改mvn命令

默认手动安装后，命令格式为 安装路径+命令

/data/apache-maven-3.8.8/bin/mvn -v

更改为通用的命令模式

[root@ ~]# cat /etc/centos-release
CentOS Linux release 7.9.2009 (Core)
[root@ ~]# echo $PATH
/usr/local/node16/bin:/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
[root@ ~]# cd /usr/bin/
[root@ bin]# ls -l

total 471880
-rwxr-xr-x. 1 root root 41488 Aug 20 2019 [
-rwxr-xr-x. 1 root root 107848 Feb 3 2021 a2p

# 添加对应命令链接     
[root@ bin]# ln -s /data/apache-maven-3.8.8/bin/mvn mvn
[root@ bin]# mvn -v

Apache Maven 3.8.8 (4c87b05d9aedce574290d1acc98575ed5eb6cd39)
Maven home: /data/apache-maven-3.8.8
Java version: 11.0.11, vendor: Microsoft, runtime: /usr/lib/jvm/msopenjdk-11
Default locale: en_US, platform encoding: UTF-8
OS name: “linux”, version: “3.10.0-1160.el7.x86_64”, arch: “amd64”, family: “unix”