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Jul 25th, 2017
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  1. # shell里的按行计数
  2. 统计某一列的计数,常用awk,也可以用uniq来做
  3. ```
  4. # 用awk
  5. wang@xxx ~ $ cat /etc/passwd|awk -F':' '{print $7}'|sort |uniq -c
  6. 25 /bin/bash
  7. 9 /bin/false
  8. 1 /bin/sync
  9. 2 /bin/zsh
  10. 1 /sbin/halt
  11. 26 /sbin/nologin
  12. 1 /sbin/shutdown
  13.  
  14. # 用sort, uniq
  15. wang@xxx ~ $ cat /etc/passwd|awk -F':' '{print $7}'|sort |uniq -c
  16. 25 /bin/bash
  17. 9 /bin/false
  18. 1 /bin/sync
  19. 2 /bin/zsh
  20. 1 /sbin/halt
  21. 26 /sbin/nologin
  22. 1 /sbin/shutdown
  23. ```
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