bash shell 脚本 检查运行的rabbitmq版本

可以使用以下命令来检查运行的 RabbitMQ 版本：

rabbitmqctl status | grep RabbitMQ

该命令将返回类似于以下内容的输出：

Status of node rabbit@localhost ...
[{pid,5478},
 {running_applications,
     [{rabbitmq_management,"RabbitMQ Management Console","3.8.3"},
      {rabbitmq_web_dispatch,"RabbitMQ Web Dispatcher","3.8.3"},
      {rabbitmq_management_agent,"RabbitMQ Management Agent","3.8.3"},
      {rabbit,"RabbitMQ","3.8.3"},
      {rabbit_common,[],"3.8.3"},
      {ranch,"Socket acceptor pool for TCP protocols.","1.7.1"},
      {ssl_transport,[],"1.0.3"},
      {cowboy,"Small, fast, modular HTTP server.","2.7.0"}]},
 {os,{unix,linux}},
 {erlang_version,"22.2.6"},
 {memory,[{total,17411424},
          {connection_readers,0},
          {connection_writers,0},
          {connection_channels,0},
          {connection_other,0},
          {queue_procs,0},
          {queue_slave_procs,0},
          {plugins,0},
          {other_proc,1818240},
          {mnesia,71008},
          {mgmt_db,0},
          {msg_index,0},
          {other_ets,954864},
          {binary,1544},
          {code,2770420},
          {atom,1109377},
          {other_system,12958263}]},
 {alarms,[]},
 {listeners,[{clustering,25672,"::"},{amqp,5672,"::"}]},
 {vm_memory_high_watermark,0.4},
 {vm_memory_limit,401620736},
 {disk_free_limit,50000000},
 {disk_free,32575135744},
 {file_descriptors,[{total_limit,1048576},
                     {total_used,11},
                     {sockets_limit,943626},
                     {sockets_used,9}]},
 {processes,[{limit,1048576},{used,322}]},
 {run_queue,0},
 {uptime,232}]

在这个例子中，我们可以看到运行的 RabbitMQ 版本是 "3.8.3"。如果您只想获取版本号，可以通过以下方式提取：

rabbitmqctl status | grep RabbitMQ | awk '{print $3}'

该命令将只返回 "3.8.3"。