Print last field of the text file.
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ux238 (2):/u02/home/satheesh> cat test.txt
satheesh kumar Bala Mani
kumar satheesh kiruthika
meena satheesh i
ux238 (0):/u02/home/satheesh> awk '{print $NF}' test.txt
Mani
kiruthika
i
Here 'NF' <-- Number of fields.
Try this
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awk -F'i' '{print $NF}' test.txt
cut -d':' -f1 test.txt
Count the number of occurence of perticular word from file
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awk '{for (i=1;i<=NF;i++)if ( $i == "kumar")c++}END{print c}' test.txt
