shithub: trueawk

ref: 9666b77b369e342353c29eed5415123f58e58948
dir: /testdir/t.a/

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	{if (amount[$2] "" == "") item[++num] = $2;
	 amount[$2] += $1
	}
END	{for (i=1; i<=num; i++)
		print item[i], amount[item[i]]
	}