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➜ grep -i 'nizhniy novgorod' ipmap.csv | head -n5
56.326900,44.007500,Nizhniy Novgorod,83.149.44.111,1789
56.326900,44.007500,Nizhniy Novgorod,83.149.45.246,521
56.328701,44.001999,Nizhniy Novgorod,95.79.99.148,207
56.326900,44.007500,Nizhniy Novgorod,95.24.41.169,162
56.326900,44.007500,Nizhniy Novgorod,83.149.45.254,151
➜ grep -i 'ulyanovsk' ipmap.csv | head -n5
54.328201,48.386600,Ulyanovsk,92.252.161.211,548
54.333302,48.400002,Ulyanovsk,128.69.58.116,215
54.328201,48.386600,Ulyanovsk,176.59.106.29,204
54.328201,48.386600,Ulyanovsk,176.59.104.68,184
54.333302,48.400002,Ulyanovsk,188.233.207.229,179
➜ dbs wc -l ipmap.csv
37361 ipmap.csv
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