awk中NR和FNR的區(qū)別小結(jié)和實(shí)例演示

[root@Blackghost test2]# cat aaa    //測試文件aaa
1111:23434:zhang
hoadsf:asdf:ccc
[root@Blackghost test2]# cat ccc    //測試文件ccc
1111:23434:zhang
hoadsf:asdf:ccc
tank:zhang:x20342
ying:zhasdf:72342
hosa:asdfa:2345sdf

[root@Blackghost test2]# awk '{print NR;print FNR;print $0;}' aaa
1     //NR
1     //FNR
1111:23434:zhang
2
2
hoadsf:asdf:ccc

[root@Blackghost test2]# awk '{print NR;print FNR;print $0;}' aaa ccc
1
1
1111:23434:zhang
2      //NR
2      //FNR
hoadsf:asdf:ccc
3      //NR
1      //FNR  下面的數(shù)據(jù)是來自ccc，所以NFR重置為1
1111:23434:zhang
4
2
hoadsf:asdf:ccc
5
3
tank:zhang:x20342
6
4
ying:zhasdf:72342
7
5
hosa:asdfa:2345sdf