How to use commands to remove. n from xxxx. n

Source: Internet
Author: User
How to use commands to remove. n in xxxx. n-general Linux technology-Linux technology and application information. The following is a detailed description. For example, the text contains several lines in the following format:
AT1G51370.2
AT3G53340.1
At4g32.160.1
AT2G53340.3
AT5G21570.4
AT2G11330.5
AT3G43320.1
How to Use the command to remove the. n of each line into the following format:
AT1G51370
AT3G53340
AT4G31270
AT2G53340
AT5G21570
AT2G11330
AT3G43320
Do you want to use sed? Thank you very much for your help!

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