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並前往https://ruby.develop-bugs.com/article/24249127/Will+%E2%80%9Csystem()%E2%80%9D+call+in+Ruby+wait+until+it+finishes%3F

Will “system()” call in Ruby wait until it finishes? - ruby-on-rails

I'm new to ruby on rails. I want to call a system command to analyze an uploaded file in my Rails application. Something as follows: after_save :analyse ...

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