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Last active October 3, 2017 18:09
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read stdout from hanging command
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README.md

dealing with hanging bash process

This line is helpful when you only need a keypress to continue the hangging process: echo dummy_text | COMMAND

When you want to wait for specific pattern from stream and exit: bash -c 'cat <(COMMAND & grep -m 1 PATTERN)'

When you want to wait for 3 seconds and exit: bash -c 'cat <(COMMAND & sleep 3s)'

  • bash -c added because command substitution is not supported on pre-POSIX systems.
  • cat <(..) prints out what written inside
  • COMMAND & run the command in background
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