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A comprehensive example of basic File Processing

Source: Internet
Author: User
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Comprehensive example of basic file processing 1. Extract the most frequently-occurring 100 logs (access time, IP address, user ID) # cat record.txt 202.114.112.5 3212345310: 21 213.89.113.21 3423423410: 22 202.114.112.5 3212345310: 23 113.89.113.21 4447423710: 23 220.14.112.5 1212305310: 24. 24134738 first order is to make the same ip address adjacent to www.2cto.com # cut-d ''-f 2,3 record.txt | sort | uniq-c 1 113.89.113.21 44474237 2 202.114.112.5 32123453 1 213.89.113.21 34234234 1 limit 24134738 1 220.14.112.5 12123053 final result # cut-d ''-f 2,3 record.txt | sort | uniq-c | sort-k1nr | head-n100 2 202.114.112.5 32123453 1 113.89.113.21 44474237 1 213.89.113.21 34234234 1 219.89.13.21 24134738 1 220.14.112.5 12123053

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