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As we said in the preface to the first edition, C 'wears well as one's experience with it grows.' With a decade more experience, we still feel that way. |
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1. Can you write a short shell to find any IPV4 IP addresses in any files under /var/lib/*. Perform a dns reverse. Lookup for each IP found, and format the output neatly, like “IP=192.168.0.1, hostname=jo.blogg.com. http://jo.blog.com“?
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