How to Filter and Query Large Log Files in Linux

Sometimes log files can be enormous, and opening them directly may freeze your system. In such cases, use the following commands to query them:

 

grep -aE '2022-03-10 15:18' wechat_open.log

 

or

 

cat wechat_open.log | grep -a '2022-03-10 15:58'

 

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