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#In the awk language, a comment starts with the number sign character (‘#’)
#and continues to the end of the line. The ‘#’ does not have to be the first
#character on the line. The awk language ignores the rest of a line following
# a number sign. For example, we could have put the following into advice:
#This is an example comment
BEGIN { print "Don't Panic!" } # inline comment example
#Self contained program comments
awk 'BEGIN { print "Don't Panic!" }' #this is a self contained program comment