The Computer Oracle

A web site where to find answers about operative systems, programming languages and computers in general.

How can I "group by" and sum a column in excel?

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Test if a port on a remote system is reachable (without telnet)

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How to clear/flush the DNS cache in Google Chrome?

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How can I download an entire website?

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Convert a column into a comma separated list

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How to decompress a .bz2 file

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How do I get different background images on my dual monitors?

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How do I exit an SSH connection?

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