Hi, i want to get below data in my perl script but am not aware of grep option to do that

suppose i have a file having below input lines, and i want to grep only lines having "03-15-2021" and not "03-15-2021-1" or 03-15-2021-2 etc

e.g. input:

03-15-2021-1 21.1.0-s103 2021/03/15:14:16:39 21.1 21.10-s103

03-15-2021-2 21.1.0-s103 2021/03/15:14:16:39 21.1 21.10-s103

03-15-2021 21.1.0-s102 2021/03/15:04:00:09 21.1 21.10-s102

output

03-15-2021 21.1.0-s102 2021/03/15:04:00:09 21.1 21.10-s102

In reply to grep only lines having matched pattern by noviceuser

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