Bash 脚本如何以自定义顺序显示匹配的单词

Question

下面是命令的输出ads2 cls create

kernel with pid 7148 (port 9011) killed
kernel with pid 9360 (port 9011) killed
probing service daemon @ http://fdt-c-vm-0093.fdtech.intern:9010
starting kernel FDT-C-VM-0093 @ http://fdt-c-yy-0093.ssbt.intern:9011 name=FDT-C-VM-0093 max_consec_timeouts=10 clustermode=Standard hostname=FDT-C-VM-0093 framerate=20000 schedmode=Standard rtaddr=fdt-c-vm-0093.fdtech.ssbt tickrole=Local tickmaster=local max_total_timeouts=1000
kernel FDT-C-VM-0093 running
probing service daemon @ http://172.16.xx.xx:9010
starting kernel FDT-C-AGX-0004 @ http://172.16.xx.xx:9011 name=FDT-C-AGX-0004 max_consec_timeouts=10 clustermode=Standard hostname=FDT-C-AGX-0004 framerate=20000 schedmode=Standard rtaddr=172.16.xx.xx tickrole=Local tickmaster=local max_total_timeouts=1000
kernel Fxx-x-xxx-xxx4 running
>>> start cluster establish ...
>>> cluster established ...
        nodes {
            node {
                name = "FDT-C-VM-xxxx";
                address = "http://fxx-x-xx-0093.xxx.intern:xxxx/";
                state = "3";
            }
            node {
                name = "xxx-x-xxx-xxx";
                address = "http://1xx.16.xx.xx:9011/";
                state = "3";
            }
        }

但是，我试图为每个节点提取 name 和 state 的值，将它们保存在一个变量中并按以下顺序显示它们：

**#example output**

Node fdt-c-agx-xxx has state 3
Node FDT-C-VM-xxx has state 3

直到现在，在这个如此强大的学习网站的帮助下，我可以通过执行以下命令提取 name 和 state 的值：

cls="$(ads2 cls create | grep '\(state\|name\) =' | cut -d '"' -f 2)"

现在如果我打印 cls 变量，我得到以下信息：

FDT-C-VM-xxx
3
FDT-C-AGX-xxx
3

第一题：

如何在 **#example output** 中显示如上所示的结果？

第二题

使用此实现，我如何检查两个节点的 state 变量的值，以便打印类似

的内容

if node1State = 3 && node2State = 3; then
echo "Sucess"
else 
echo "Failed"

Answer 1

由于输出似乎是 json，你真的应该使用 json 解析器，例如 jq 但在没有 jq 的情况下你可以使用 awk 并结合问题一和问题二的要求:

ads2 cls create | awk -F [\"] '/^>>> cluster established .../ { strt=1 } strt!=1 { next }  ~ "name" { cnt++;nam[cnt]= }  ~ "state" { stat[cnt]=;print "Node "nam[cnt]" has state " } END { if (stat[1]=="3" && stat[2]=="3") { print "Success" } else { print "Failed" } }'

解释：

 ads2 cls create | awk -F [\"] '                                         # Set the field delimiter to a double quote
/^>>> cluster established .../ { 
               strt=1                                                    # If the line starts with ">>> cluster established ...", set a variable strt to 1
            }
 strt!=1    { 
               next                                                      # If strt is not equal to 1, skip to the next line
            }
  ~ "name" { 
               cnt++;                                                    # If the first field contains name, increment a cnt variable
               nam[cnt]=                                               # Use the cnt variable as the index of an array called nam with the second field the value
             }  
  ~ "state" {   
               stat[cnt]=;                                             # When the first field contains "state", set up another array called stat
               print "Node "nam[cnt]" has state "                      # Print the node name as well as the state
               } 
           END { 
                 if (stat[1]=="3" && stat[2]=="3") { 
                   print "Success"                                       # At the end of processing, use the array to determine whether there is a success of failure.
                 } 
                 else { 
                   print "Failed" 
                 } 
                }'

Bash 脚本如何以自定义顺序显示匹配的单词

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