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原标题:SED adds new line at the end

如果我在“终端应用程序”中执行这一规定,则:

$ cat test.txt | od -c

0000000    t   e   s   t   1  
   t   e   s   t   2                    
0000013

这符合我的测试文件的真实内容。 Ok.

但是,如果我执行处决,就会增加每个档案的新线。

$ sed  s/e/X/g  test.txt | od -c
0000000    t   X   s   t   1  
   t   X   s   t   2  
                
0000014

我不想这样一条新路线。 我如何确定这一点?

最佳回答

使用<代码>f。 第1行是特例,以便无需新线印刷。 其余所有线路均以前线印刷。 这确保你永远不会用新路线结束。

基本结构:

awk  NR==1 { printf("%s", $0); next }
     { printf("
%s", $0) } 
问题回答

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