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history awk grep sort

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# 1  
Old 02-18-2010
history awk grep sort
can someone help me in the awk part...little confuse on that part.

The problem is this: what input each utility gets and what it does with data and what output is provides to the next utility)

Code:
history | awk '{a[$3]++}END{for(i in a){print a[i] " " i}}' | sort -rn | grep '^[0-9][0-9]'

Thanks
Last edited by Learnerabc; 02-18-2010 at 01:57 AM.. Reason: Please use code tags
# 2  
Old 02-18-2010
What you are trying to achieve ? and what is wrong ?
# 3  
Old 02-18-2010
what input each utility gets and what it does with data and what output is provides to the next utility)
# 4  
Old 02-18-2010
Can you show the result of the history command too?
# 5  
Old 02-18-2010
anyone????
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