文件中包含名字,电话号码和过去三个月里的捐款,用:分隔
具体内容如下:
Mike Harrington:[510] 548-1278:250:100:175
Christian Dobbins:[408] 538-2358:155:90:201
Susan Dalsass:[206] 654-6279:250:60:50
Archie McNichol:[206] 548-1348:250:100:175
Jody Savage:[206] 548-1278:15:188:150
Guy Quigley:[916] 343-6410:250:100:175
Dan Savage:[406] 298-7744:450:300:275
Nancy McNeil:[206] 548-1278:250:80:75
John Goldenrod:[916] 348-4278:250:100:175
Chet Main:[510] 548-5258:50:95:135
Tom Savage:[408] 926-3456:250:168:200
Elizabeth Stachelin:[916] 440-1763:175:75:300
练习:
1. 显示所有电话号码
awk -F: '{print $2}' file.txt
2.显示Dan的电话号码
awk -F: '$1~/Dan/{print $2}' file.txt
3.显示Susan的名字和电话号码
awk -F: '$1~/Susan/{print$1":"$2}' file.txt
4.显示所有以D开头的姓
awk '$1~/^D/{print $1}' file.txt