mr.sh: line 1: HADOOP_CMD: command not found mr.sh: line 4: INPUT_FILE_PATH: command not found mr.sh: line 6: OUTPUT_PATH: command not found mr.sh: line 8: fs: command not found Illegal option: / Usage: jar {ctxui}[vfmn0PMe] [jar-file] [manifest-file…
参考文档 <Installing MySQL on Unix/Linux Using Generic Binaries> https://dev.mysql.com/doc/refman/5.7/en/binary-installation.html 卸载旧版本MySQL 查看当前Linux环境中是否已经安装了MySQL. 执行命令:rpm -qa|grep mysql 查看状态:service mysqld status 停止服务:service mysqld stop 卸载MySQL: […