Batch scripting find the first occurence of string taskid [duplicate]

问题

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How can I get unique records from in the below case (1 answer)

How to get a particular value from file by batch script? [duplicate] (2 answers)

Closed 11 days ago.

I have a text file with a string occurs multiple lines. I want to get the line where this is the first occurrence of the string. I could find all occurrences using below command but I want only first occurrence in single line command.

findstr /C:"taskId" Book.txt

Book.txt

3047 [main] INFO  com.informatica.saas.utilities.task.ICSTask  -
Submitted run of the task: taskId=0015FL0Z0000000000R6,
taskRunId=20869
https://use4.dm-us.informaticacloud.com/saas/api/v2/activity/activityMonitor
https://use4.dm-us.informaticacloud.com/saas/api/v2/activity/activityMonitor
https://use4.dm-us.informaticacloud.com/saas/api/v2/activity/activityLog?taskId=0015FL0Z0000000000R6&runId=20869

回答1:

Try something like this:

for /f "delims=" %%a in ('findstr /C:"taskId" Book.txt') do (
   echo %%a
   goto :continue
)
:continue

来源：https://stackoverflow.com/questions/59062749/batch-scripting-find-the-first-occurence-of-string-taskid