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- kavitha= Tue Feb 20 14:00 19 IST 2012 (duplicate entry)
- sree=Tue Jan 20 14:05 19 IST 2012
- divya = Tue Jan 20 14:20 19 IST 2012
- anusha=Tue Jan 20 14:45 19 IST 2012
- kavitha= Tue Feb 20 14:00 19 IST 2012 (duplicate entry)
- kavitha= Tue Feb 20 14:00 19 IST 2012
- sree=Tue Jan 20 14:05 19 IST 2012
- divya = Tue Jan 20 14:20 19 IST 2012
- anusha=Tue Jan 20 14:45 19 IST 2012
- $ sort -u file.txt
- $ awk '!a[$0]++' input.txt
- sed '$!N; /^(.*)n1$/!P; D'
- cat -n file.txt |
- sort -u -k2,7 |
- sort -n |
- sed 's/.*t/ /;s/([0-9]{4}).*/1/'
- awk '{line=substr($0,1,match($0,/[0-9][0-9][0-9][0-9]/)+3);sub(/^/," ",line);if(!dup[line]++)print line}' file.txt
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