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TIL - SIGINFO is awesome Today I learnt something really awesome. If you use a Unix based operating system, then you will be able to send any process a signal. This might be either Ctrl+C or SIGINT to interrupt that process. Or you can send SIGINFO to report the progress of it’s operation. Why this is awesome? Did you ever copy a huge amount of data and cp didn’t tell you how much has data has been copied so far?