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Thread: removing duplicate blank lines
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Old 07-31-2008
era era is offline Forum Advisor  
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Join Date: Mar 2008
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The variable blank will be zero initially, but non-zero (i.e. true) on subsequent runs.

The 1 is an awk idiom which matches and prints lines not handled by previous conditions.

Actually you should change it to '{ blank=0; print }' in order for the script to work correctly on files where there are multiple sequences of adjacent empty lines. Sorry for missing that.