Some problem
1. egrep '(2[8-9]|3[0])/April/2008' server-81-access_log
If we try this command there will be no output.
2. egrep '(2[8-9]|3[0])/April/2008|0[1-2]/May/2008' server-81-access_log
if we try this command there is output but for 1st n 2nd may only not for the april dates.......
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