从命令中选择字符并替换其中一些字符

Question

>我从 NetApp 查询中得到了这个结果

Object: nfsv4_diag
Instance: nfs4_diag
Start-time: 6/4/2020 16:55:40
End-time: 6/4/2020 16:55:40
Scope: NODE1
Counter                                                     Value
-------------------------------- --------------------------------
storePool_ByteLockAlloc                                         0
storePool_ClientAlloc                                          60
storePool_CopyStateAlloc                                        0
storePool_DelegAlloc                                            0
storePool_DelegStateAlloc                                       0
storePool_LayoutAlloc                                           0
storePool_LayoutStateAlloc                                      0
storePool_LockStateAlloc                                        0
storePool_OpenAlloc                                            86
storePool_OpenStateAlloc                                       86
storePool_OwnerAlloc                                           10
storePool_StringAlloc                                          70
Object: nfsv4_diag
Instance: nfs4_diag
Start-time: 6/4/2020 16:55:40
End-time: 6/4/2020 16:55:40
Scope: NODE2
Counter                                                     Value
-------------------------------- --------------------------------
storePool_ByteLockAlloc                                      1246
storePool_ClientAlloc                                          29          
storePool_CopyStateAlloc                                        0          
storePool_DelegAlloc                                            0          
storePool_DelegStateAlloc                                       0          
storePool_LayoutAlloc                                           0          
storePool_LayoutStateAlloc                                      0          
storePool_LockStateAlloc                                      468          
storePool_OpenAlloc                                           811          
storePool_OpenStateAlloc                                      811          
storePool_OwnerAlloc                                          519          
storePool_StringAlloc                                         548          
Object: nfsv4_diag                                                             
Instance: nfs4_diag                                                            
Start-time: 6/4/2020 16:55:40                                                  
End-time: 6/4/2020 16:55:40                                                    
Scope: NODE3 

Counter                                                     Value          
-------------------------------- --------------------------------          
storePool_ByteLockAlloc                                       165          
storePool_ClientAlloc                                          27          
storePool_CopyStateAlloc                                        0          
storePool_DelegAlloc                                            0          
storePool_DelegStateAlloc                                       0          
storePool_LayoutAlloc                                           0          
storePool_LayoutStateAlloc                                      0          
storePool_LockStateAlloc                                      135          
storePool_OpenAlloc                                           272          
storePool_OpenStateAlloc                                      272          
storePool_OwnerAlloc                                          152          
storePool_StringAlloc                                         179 

我想将其转换为以下内容：

NODE1.storePool_ByteLockAlloc=0;NODE1.storePool_ClientAlloc=60;NODE1.storePool_CopyStateAlloc=0;............NODEn.storePool_ByteLockAlloc=165;

对于我从输出中获得的所有节点(不仅是 3 个(。

我尝试使用以下命令替换输出：

output.replace(' ', '').replace('Alloc', 'Alloc=').replace('r','').replace('n',' ')

但这并没有给我我需要的结果。

一些想法？

提前非常感谢您的帮助。

Answer 1

如果将输出捕获到一个长字符串中，则可以使用正则表达式查找感兴趣的行并将它们解析为请求的格式：

import re
output = """
Object: nfsv4_diag
Instance: nfs4_diag
Start-time: 6/4/2020 16:55:40
End-time: 6/4/2020 16:55:40
Scope: NODE1
Counter                                                     Value
-------------------------------- --------------------------------
storePool_ByteLockAlloc                                         0
storePool_ClientAlloc                                          60
storePool_CopyStateAlloc                                        0
storePool_DelegAlloc                                            0
.
.
.
"""
rv = []
current_node = None
for match in re.findall(r'Scope: (NODEd+)|(storePool_.*)', output):
node, metric = match
if node and current_node != node:
current_node = node
if current_node and metric:
name, value = metric.strip().split()
rv.append(f'{current_node.strip()}.{name}={value}')
print(';'.join(rv))

输出：

NODE1.storePool_ByteLockAlloc=0;NODE1.storePool_ClientAlloc=60;NODE1.storePool_CopyStateAlloc=0;NODE1.storePool_DelegAlloc=0;...