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[root@localhost Ex_6.001-6.054]# cat employees
Tom Jones 4424 5/12/66 54335
Mary Adams 5346 11/4/63 28765
Sally Chang 1654 7/22/54 65000
Billy Black 1683 9/23/44 33650
[root@localhost Ex_6.001-6.054]# awk '{print NF, $0}' employees
5 Tom Jones 4424 5/12/66 54335
5 Mary Adams 5346 11/4/63 28765
5 Sally Chang 1654 7/22/54 65000
5 Billy Black 1683 9/23/44 33650
[root@localhost Ex_6.001-6.054]# awk '{print $0, NF}' employees
5m Jones 4424 5/12/66 54335
5ry Adams 5346 11/4/63 28765
5lly Chang 1654 7/22/54 65000
5lly Black 1683 9/23/44 33650
如上,各位高手,为什么我把变量NF放$0后面,它却没有如我愿跟到$0后面?而反过来,$0却能跟在NF后面?多谢。 |
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