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$3 > 15 { emp = emp + 1 } END { print emp, "employees worked more than 15 hours." }

��� awk �ץ������� m15.awk �Ȥ���̾���Ǻ������Ƥ������ʲ��Τ褦�˼¹Ԥ��ޤ���

sw%99 awk -f m15.awk emp.dat 3 employees worked more than 15 hours.

�ʲ���Ʊ�ͤ� awk �ץ������ե�����κ����ȼ¹Ԥ��������Ʋ�������

{ pay = pay + $2 * $3 } END { print NR, "employees"; print "total pay is",pay; print "average pay is",pay/NR; }

$2 > max { max = $2; who = $1 } END { print "Highest hourly rate:", max, "for", who }

{ names = names $1 " " } END { print names }

{ last = $0 } END { print last }

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BEGIN { print "*** Employee Statistics ***" } $3 > 15 { emp = emp + 1 } { pay = pay + $2 * $3 } $2 > max { max = $2; who = $1 } { names = names $1 " " } { last = $0 } END { print "Employee list:", names; print NR, "employees"; print emp, "employees worked more than 15 hours." ; print "total pay is",pay; print "average pay is",pay/NR; print "Highest hourly rate:", max, "for", who ; print "Who was the last:",last; }

�����ƥ��ͭ�Υ桼��(root �� lp �ʤ�΢���λŻ��򤹤�褦�ˤʤäƤ��ޤ�) �� /etc/passwd ���������Ƥ��ޤ��� ���Υե�����Ǥ� �ƹ��ܤ� �� �� ���ڤ��� ���ޤ����顢

sw99% awk -F: '$1 == "root" {print $5}' /etc/passwd

�ʾ�Τۤ��ˤ⡢ awk �� �Ȥ߹��� �ؿ��䡢 if-elseʸ�� whileʸ�� forʸ �ʤɤ� �Ȥä� ʣ���� �׻��� �ץ����������� �����ʤ� ���Ȥ� �Ǥ��ޤ��� ������ �ܺ٤� �Ĥ��Ƥϡ� C����� �ؤ�� ��� ���ͽ� �֥ץ�����ߥ󥰸���AWK�� �����ۡ� �����˥ϥ� �磻��С��������� ­Ω�� �ʥȥåѥ� 3,400�ߡ� �� �ɤळ�Ȥ� ����ޤ���

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1. ���٤Ƥ� ���ϹԤ� ��� ������ ɽ������ �ˤ� �ɤ������� �褤�� ���礦�� �ʥҥ�ȡ� ��� ���� NF �� ���ä� ���ޤ�����
2. �Ǹ�� �Ԥ� �Ǹ�� ��� ɽ������ˤ� �ɤ������� �褤�Ǥ��礦��
3. ����μ��ȤǺ������� acc.dat ���顢ʬ�ब in �ζ�ۤ��פ��� ɽ�����ʤ�����(�ѿ�̾�� in ��Ȥ��ȡ�ͽ���פΤ��� ���顼�ˤʤ�ޤ�)
4. acc.dat ���� ʬ�ब eat, other �ζ�ۤ򤽤줾���פ���ɽ�����ʤ�����
5. acc.dat ���顢�����֤μ���(�긵�˻Ĥä����)��׻�����ɽ�����ʤ�����

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