1. ls-----------list

    ls -l

    ls -t

    ls -u

    ls -r

    ls file

2. ed----------edit

    a

    .

    q

3. cp ---------copy

    cp file1 file2

    cp -R dirtory1 dirtory2

4. mv----------move

    mv file1 file2

5. rm---------remove

    rm file

    rm -f file

    rm -r dirtory

6. cat---------catenate

    cat file

7. pr----------print

    pr file

    pr -n file

8. wc----------word count

     wc file 

     wc -l file

9. grep---------globally search a regular expression and print

     grep file

     grep -v pattern file

10. sort

      sort file

      sort -n

11. tail

      tail file

      tail -n file

      tail +n file

12. cmp-----------compare

      cmp file1 file2

13. diff-------------different

      diff file1 file2

14. pwd-------------print working directory

      pwd

15. cd----------------change directory

      cd directory

16. mkdir------------make directory

17. rmdir------------remove directory

19. tee

常用的文件处理命令