背景
服务器的jdk通过yum 安装的，要用jps查询pid，提示找不到命令
yum install -y java-1.8.0-openjdk.x86_64
一、jps命令无法找到
dev@hgh-tob-hsbc-dev-003 \~\]$ jps -bash: jps: command not found
二、检查基础Java环境
dev@hgh-tob-hsbc-dev-003 \~\]$ java -version openjdk version "1.8.0_292" OpenJDK Runtime Environment (build 1.8.0_292-b10) OpenJDK 64-Bit Server VM (build 25.292-b10, mixed mode)
三、查Java安装的目录
root@hgh-tob-hsbc-dev-003 java\]# **which java** /bin/java \[root@hgh-tob-hsbc-dev-003 java\]# **ls -lrt /bin/java** lrwxrwxrwx 1 root root 22 May 4 2023 /bin/java -\> /etc/alternatives/java \[root@hgh-tob-hsbc-dev-003 java\]# **ls -lrt /etc/alternatives/java** lrwxrwxrwx 1 root root 73 May 4 2023 /etc/alternatives/java -\> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.292.b10-1.el7_9.x86_64/jre/bin/java
四、安装目录无jps命令
五、需要安装openjdk-devel包
yum install -y java-1.8.0-openjdk-devel.x86_64
六、安装后执行结果
root@hgh-tob-hsbc-dev-003 bin\]# jps 52391 Jps