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Linux Shell Scripting Cookbook

You're reading from   Linux Shell Scripting Cookbook Do amazing things with the shell and automate tedious tasks

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Product type Paperback
Published in May 2017
Publisher
ISBN-13 9781785881985
Length 552 pages
Edition 3rd Edition
Tools
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Authors (3):
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Clif Flynt Clif Flynt
Author Profile Icon Clif Flynt
Clif Flynt
Sarath Lakshman Sarath Lakshman
Author Profile Icon Sarath Lakshman
Sarath Lakshman
Shantanu Tushar Shantanu Tushar
Author Profile Icon Shantanu Tushar
Shantanu Tushar
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Toc

Table of Contents (14) Chapters Close

Preface 1. Shell Something Out FREE CHAPTER 2. Have a Good Command 3. File In, File Out 4. Texting and Driving 5. Tangled Web? Not At All! 6. Repository Management 7. The Backup Plan 8. The Old-Boy Network 9. Put On the Monitors Cap 10. Administration Calls 11. Tracing the Clues 12. Tuning a Linux System 13. Containers, Virtual Machines, and the Cloud

Let us ping!

The ping command is a basic network command, supported on all major operating systems. Ping is used to verify connectivity between hosts on a network and identify accessible machines.

How to do it...

The ping command uses Internet Control Message Protocol (ICMP) packets to check the connectivity of two hosts on a network. When these echo packets are sent to a target, the target responds with a reply if the connection is complete. A ping request can fail if there is no route to the target or if there is no known route from the target back to the requester.

Pinging an address will check whether a host is reachable:

$ ping ADDRESS 

The ADDRESS can be a hostname, domain name, or an IP address itself.

By default, ping will continuously send packets and the...

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