原题链接
How would you print just the 10th line of a file? For example, assume that file.txt has the following content:
Line 1
Line 2
Line 3
Line 4
Line 5
Line 6
Line 7
Line 8
Line 9
Line 10
Your script should output the tenth line, which is: Line 10
参考代码: //NR表示行号，$0打印整行
awk
'{if(NR==10){print $0}}' file.txt
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