Tee command: Process output not available till process completes

Asked Jan 20 '14 at 12:25

Active Jan 20 '14 at 12:25

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I have a long running process that outputs status messages, errors and warnings to console. I want to log this output to a file and also see it on the console.

Using foo_command | tee foolog.txt does the job but foolog.txt remains empty till foo_command has completed.

What I want is live output to foolog.txt so that anyone can tail foolog.txt to monitor the status. How do I achieve this?

asked Jan 20 '14 at 12:25

Dojo

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Related: http://stackoverflow.com/questions/18595199/why-does-tee-wait-for-all-subshells-to-finish – fedorqui Jan 20 '14 at 12:26
@fedorqui but it does not answer my question. How do I make tee or any other command write live output to file? – Dojo Jan 20 '14 at 12:29
@Dojo `tee` does write `live` output to a file – Reinstate Monica Please Jan 23 '14 at 09:02
@BroSlow I `tail`ed `foolog.txt` and did not see any output till the process ended. – Dojo Jan 23 '14 at 13:27

Tee command: Process output not available till process completes

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