Create generic loop fn
Might be useful for things like: ``` loop 'PAGER="" hgst' 1 y ``` ``` loop 'du -hs .' ``` ``` loop ll ```
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					@ -406,6 +406,28 @@ is_online() {
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  fi
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					  fi
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}
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					}
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					loop() {
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					  # Continuously loop `command` every `sleep_amt` interval. `sleep_amt` defaults
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					  # to 1 second. Pass y/n for `should_clear` if you'd like to clear the screen
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					  # at the end of each iteration.
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					  # Usage: loop <command> <sleep_amt> <should_clear>
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					  local command=$1;
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					  local sleep_amt=${2:-1};
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					  local should_clear=${3:-n}
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					  # clear the screen before kicking things off
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					  if [ $should_clear = y ]; then
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					    clear
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					  fi
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					  while true; do
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					    eval $command && sleep $sleep_amt
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					    if [ $should_clear = y ]; then
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					      clear
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					    fi
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					  done
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					}
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du_it_live() {
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					du_it_live() {
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  # Outputs and refreshes the size of a directory's content.
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					  # Outputs and refreshes the size of a directory's content.
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  # Useful for watching a directory as large amounts of data are
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					  # Useful for watching a directory as large amounts of data are
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