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I would like to know what the differences between using the commands :

ping -c 3 www.google.com

and

ping www.google.com

Any help or information is appreciated. Thanks!

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Please learn to use man, man ping will tell you everything you need to know. You should also try researching before posting here, that way you won't get downvoted. –  terdon Feb 25 at 11:03
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2 Answers

up vote 5 down vote accepted

ping -c option will specify the number of packets sent and will stop after counting them , here in you example count is 3 .

enter image description here

ping www.google.com

will send infinite packets until you stop it by closing or ctrl+c

For more information about ping options

Ping Options

Or use man ping in terminal .

Try it.

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ping -c 3 www.google.com

will send exactly three ping requests to Google, after which the program terminates. It doesn't matter whether there are replys for (some of) the requests or not.

ping www.google.com

will endlessly send ping requests to Google, and the ping command will never terminate until you end it manually using, e.g., Ctrl+c.

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