linux查詢jdk的安裝路徑

1、 查java指令位置：

[root@localhost ~]# which java

/usr/bin/java

[root@localhost ~]# 

2、查軟鍊：

[root@localhost ~]# ls -l /usr/bin/java

lrwxrwxrwx. 1 root root 22 4月  30 14:42 /usr/bin/java -> /etc/alternatives/java

[root@localhost ~]# 

3、查jdk目錄：

[root@localhost ~]# ls -l /etc/alternatives/java

lrwxrwxrwx. 1 root root 73 4月  30 14:42 /etc/alternatives/java -> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.292.b10-1.el7_9.x86_64/jre/bin/java

[root@localhost ~]# 

jdk目錄是 /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.292.b10-1.el7_9.x86_64