kill Rails process with find port number in macos

lsof -wni tcp:3000

Then, use the number in the PID column to kill the process:

$ kill -9 PID

https://stackoverflow.com/a/4473322/1399891

#macos (4) #rails (43)

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Opening Apps from Te...... #macos (4) #tips (1) #terminal (2)

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Case 1. [74118] - Wo...... #rails (43)

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$ rails generate mig...... #active_record (1) #alter (1) #add_column (1) #add_index (1) #rails (43)

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ActionController::Ba...... #ruby (18) #rails (43)

August 18, 2019 Rail...... #rails (43)

Hello World