在文件中添加新行

personball

回复 1# wangya072

1. personball@vostro:awk$cat test
   
2. /mnt/
   
3. /home/
   
4. /dev/
   
5. /home/centos/
   
6. personball@vostro:awk$awk -v file="/home/" '!a[$0]++{print} END{if(!a[file])print file}' test
   
7. /mnt/
   
8. /home/
   
9. /dev/
   
10. /home/centos/
    
11. personball@vostro:awk$awk -v file="/home/x" '!a[$0]++{print} END{if(!a[file])print file}' test
    
12. /mnt/
    
13. /home/
    
14. /dev/
    
15. /home/centos/
    
16. /home/x
    
17. personball@vostro:awk$
    

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