如何将两行内容拼接成一行？

mpstat

echo $(<file)

zhaopingzi

1. 
   
2. $ cat file
   
3. 2000,2002,2004,2006,3002,3102,3208
   
4. 4000,4002
   
5. 2000,2002,2004,2006,3002,3102,3208
   
6. 4000,4002
   
7. 2000,2002,2004,2006,3002,3102,3208
   
8. $ awk -F, '{if(NR%2==1) printf $0;else print ","$0}' file
   
9. 2000,2002,2004,2006,3002,3102,3208,4000,4002
   
10. 2000,2002,2004,2006,3002,3102,3208,4000,4002
    
11. 2000,2002,2004,2006,3002,3102,3208
    
12. 
    

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1. 
   
2. print输出完成后自动换行，而printf不会自动换行
   

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zhaopingzi

回复 11# mpstat

这个把所有的行都搞成一行了