Monthly Archives: July 2009

IP4/IPv6 header format

  IPv4 header format The Internet Protocol (IP) provides unreliable, connectionless packet delivery. IP is connectionless because it treats each packet of information independently. It is unreliable because it does not guarantee delivery. That is, it does not require acknowledgments … Continue reading

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Sort file by file size via Unix/Linux shell

  To sort certain files in the directory and to showthe biggest file first, do the following from shell.   $ du -a | sort -n -r

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