全局变量结尾的使用全局变量文案不合适。而且为什么突然要处理json？ TencentBlueKing#1323

src/frontend/src/views/task-manage/common/variable-use-guide/magic-variable.en.md

@@ -19,7 +19,7 @@ Magic Variable is a special variable that built-in specific to the JOB platform,
 
     ```bash
     # job_import {{host_type_var_name}}
-    
+
     echo ${host_type_var_name}
     ```
 
@@ -36,63 +36,64 @@ Magic Variable is a special variable that built-in specific to the JOB platform,
     ```bash
     # job_import {{JOB_LAST_ALL}}
     # Get all host list of last step
-    
+
     # job_import {{JOB_LAST_SUCCESS}}
     # Get success host list of last step
-    
+
     # job_import {{JOB_LAST_FAIL}}
     # Get failure host list of last step
     ```
 
     The result output format is "Cloud Area + : + inner IP addr", multiple IPs are separated by commas(,)
 
   - To get value of other host's namespace variable
-  
+
     ```bash
     # job_import {{JOB_NAMESPACE_ALL}}
     # Get value of all namespace variable
     echo ${JOB_NAMESPACE_ALL}
-    
+
     # job_import {{JOB_NAMESPACE_varname}}
     # Get value of specific namespace variable
     echo ${JOB_NAMESPACE_varname}
     ```
 
     Result (Example):
-  
+
     ```bash
     ### echo ${JOB_NAMESPACE_ALL} (If there have two namespace variables: ns_var1 and ns_var2):
     {"ns_var1":{"0:10.10.10.1":"xxxx","0:10.10.10.2":"yyyy","0:10.10.10.3":"zzzz"},"ns_var2":{"0:20.20.20.1":"aaaa","0:20.20.20.2":"bbbb","0:20.20.20.3":"cccc","0:20.20.20.4":"dddd"}}
-      
+
     ### echo ${JOB_NAMESPACE_ns_var1}:
     {"0:10.10.10.1":"xxxx","0:10.10.10.2":"yyyy","0:10.10.10.3":"zzzz"}
     ```
 
+# Suggestions
   - Two ways to processing JSON string with Shell (For reference only, it's recommended to be on-line after debug)：
 
     1. Using sed & awk :
     ```bash
       #!/bin/bash
-      
+
       str='{"ns1":{"ip1":"value1","ip2":"value2"},"ns2":{"ip3":"value3","ip4":"value4"}}'
-      
+
       function json_parse {
           local _json=$1
           local _key=$2
           temp=`echo $_json | sed 's/\\\\\//\//g' | sed 's/[{}]//g' | awk -v k="text" '{n=split($0,a,","); for (i=1; i<=n; i++) print a[i]}' | sed 's/\"\:\"/\|/g' | sed 's/[\,]/ /g' | sed 's/\"//g' | grep -w $_key`
           echo ${temp##*|}
       }
-      
+
       json_parse $str ip1			## Value of ip1 in $str variable, it will be "value1"
       json_parse $str ns1			## Value of ns1, it will be {"ip1":"value1","ip2":"value2"}
     ```
 
     2. Using Python's json module :
     ```bash
       #!/bin/bash
-      
+
       str='{"ns1":{"ip1":"value1","ip2":"value2"},"ns2":{"ip3":"value3","ip4":"value4"}}'
-      
+
       ### To get value of ip2 in $str variable, it will be "value2"
       echo ${str} | python -c 'import json,sys;obj=json.load(sys.stdin);print obj["ns1"]["ip2"]'
     ```

src/frontend/src/views/task-manage/common/variable-use-guide/magic-variable.md

@@ -18,7 +18,7 @@ JOB平台执行引擎提供的特有的变量能力
 
     ```bash
     # job_import {{主机列表的全局变量名}}
-    
+
     echo ${主机列表的全局变量名}
     ```
 
@@ -35,62 +35,64 @@ JOB平台执行引擎提供的特有的变量能力
     ```bash
     # job_import {{JOB_LAST_ALL}}
     # 获取上一个步骤的所有执行主机IP列表
-    
+
     # job_import {{JOB_LAST_SUCCESS}}
     # 获取上一个步骤执行成功的主机IP列表
-    
+
     # job_import {{JOB_LAST_FAIL}}
     # 获取上一个步骤执行失败的主机IP列表
     ```
 
     输出的格式同上： `云区域ID + 冒号 + 内网IP`，多个IP地址以逗号分隔
 
   - 获取其他主机的命名空间变量值
-  
+
     ```bash
     # job_import {{JOB_NAMESPACE_ALL}}
     # 获取所有命名空间变量的汇聚值
     echo ${JOB_NAMESPACE_ALL}
-    
+
     # job_import {{JOB_NAMESPACE_命名空间变量名}}
     # 获取某个命名空间变量的汇聚值
     echo ${JOB_NAMESPACE_命名空间变量名}
     ```
 
     输出结果（示例）：
-  
+
     ```bash
     ### echo ${JOB_NAMESPACE_ALL} 的输出(假定有 ns_var1 和 ns_var2 两个命名空间类型全局变量)：
     {"ns_var1":{"0:10.10.10.1":"xxxx","0:10.10.10.2":"yyyy","0:10.10.10.3":"zzzz"},"ns_var2":{"0:20.20.20.1":"aaaa","0:20.20.20.2":"bbbb","0:20.20.20.3":"cccc","0:20.20.20.4":"dddd"}}
-      
+
     ### echo ${JOB_NAMESPACE_命名空间变量名} 的输出：
     {"0:10.10.10.1":"xxxx","0:10.10.10.2":"yyyy","0:10.10.10.3":"zzzz"}
     ```
+
+# 处理建议
   - Shell 脚本处理 JSON字符串的两种方式（仅供参考，正式投入使用建议调试确认后再上线）：
 
 	  方式一：（纯 sed + awk 实现）
     ```bash
       #!/bin/bash
-      
+
       str='{"ns1":{"ip1":"value1","ip2":"value2"},"ns2":{"ip3":"value3","ip4":"value4"}}'
-      
+
       function json_parse {
           local _json=$1
           local _key=$2
           temp=`echo $_json | sed 's/\\\\\//\//g' | sed 's/[{}]//g' | awk -v k="text" '{n=split($0,a,","); for (i=1; i<=n; i++) print a[i]}' | sed 's/\"\:\"/\|/g' | sed 's/[\,]/ /g' | sed 's/\"//g' | grep -w $_key`
           echo ${temp##*|}
       }
-      
+
       json_parse $str ip1			## 获取 str 的 json字符串中 ip1 的值，即：value1
       json_parse $str ns1			## 获取 str 的 json字符串中 ns1 的值，即：{"ip1":"value1","ip2":"value2"}
     ```
 
     方式二：（借助 Python 的 json 模块实现）
     ```bash
       #!/bin/bash
-      
+
       str='{"ns1":{"ip1":"value1","ip2":"value2"},"ns2":{"ip3":"value3","ip4":"value4"}}'
-      
+
       ### 获取 str 的 json字符串中 ip2 的值，即：value2
       echo ${str} | python -c 'import json,sys;obj=json.load(sys.stdin);print obj["ns1"]["ip2"]'
     ```