1. [root@kedacom wyl]# cat person
    2. zhangsan student 21
    3. lisi teacher 30
    4. xiao teacher 30
    5. wanger student 20
    6. guo teacher 9
    8. #对文件的行进行排序输出，默认为升序
    9. [root@kedacom wyl]# sort person
    10. guo teacher 9
    11. lisi teacher 30
    12. wanger student 20
    13. xiao teacher 30
    14. zhangsan student 21
    16. #对文件的行进行降序输出
    17. [root@kedacom wyl]# sort -r person
    18. zhangsan student 21
    19. xiao teacher 30
    20. wanger student 20
    21. lisi teacher 30
    22. guo teacher 9
    24. #使用空格对文件进行分割，使用第三列进行排序，默认按字符排序
    25. [root@kedacom wyl]# sort -t" " -k3 person
    26. wanger student 20
    27. zhangsan student 21
    28. lisi teacher 30
    29. xiao teacher 30
    30. guo teacher 9
    32. #使用空格对文件进行分割，使用第三列进行排序，去除重复的行
    33. [root@kedacom wyl]# sort -t" " -k3 -u person
    34. wanger student 20
    35. zhangsan student 21
    36. lisi teacher 30
    37. guo teacher 9
    39. #使用空格对文件进行分割，使用第三列进行排序，按数值进行排序
    40. [root@kedacom wyl]# sort -t" " -k3 -n person
    41. guo teacher 9
    42. wanger student 20
    43. zhangsan student 21
    44. lisi teacher 30
    45. xiao teacher 30