Within a solitary Listing, it may be so simple as reading through the complete filelist before processing it (and strace can make it looks like that's what comes about):

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As long as $COMMAND terminates effectively, It's going to be operate once more. If it fails or is terminated by signal, the loop will close.

The linux technique keeps altering the baud price of the port to default (9600). Is there a much better method to change the baud level on the port forever? 2

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Will you be typing the information into your screen window? If that's so try out ending the road with Management-j or Regulate-d intsead of enter.

Would be the CPU idling when your no-op command executes? You don't need a solution which burns CPU cycles even though doing your no-op command. Most solutions on this web site won't solution this dilemma.

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peterhpeterh 94011 gold badge88 silver badges1818 bronze badges one Most if not all of your current considerations are currently resolved in other solutions in this article. None of the current answers propose chaotic loops.

@Binarus, oh, hmm, I did not notice you meant uncover vs globs therefore an essential position. Which may be worth a question in itself, if it is not below now. I think there is certainly a handful of other details than just pace: standardization and batching arrive at thoughts.

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slm's response is great, but when you merely desire to quickly Test no matter whether a host is alive (and reachable, and responding to ping) Then you can certainly use fping in lieu of ping. It pings the host(s), and waits a short time for just a response. fping's exit code studies success or failure.