Unix Tools - Commands Basic and Advance

( recommend : ctrl+f to search keyword or command you want )
Unix Command :


1. ls -> show contents of current directory
2. ls -l -> show as list with some detail
3. ls -la -> show as list with more detail, size(byte)
4. ls -i * -> to show all file's inode number
5. dir -> show contents of current directory(cmd)
6. cd direcotry -> go to directory
7. cd .. -> go to back tree parent of current directory
8. cd / -> go to root directory
9. cd ~ -> go to home directory
10. cd ${HOME} -> go to home directory
11. vi file -> make new file or edit file with vi editor
12. pico file -> make new file or edit file with pico editor
13. mkdir directory .. -> make new directorys
14. mkdir [my\ name] -> make new directory with name space
15. rm files .. -> remove or delete files
16. rm directory .. -> remove directory (directory must be empty)
17. rm -r directory.. -> force remove directory even is not empty
18. mv file1 file2 -> rename file1 to file2 in the same directory
19. mv file1 dir/file1 -> move file1 to dir/ in current directory as file1
20. cp file1 file2 -> copy file1 past file2 in the same directory
21. cp file1 dir/file1 -> copy file1 to past in dir/ in current directory as file1
22. cat file -> view file content without editing
23. cat -n file -> view file with line number
24. last -> show time of login on current server
25. last -20 -> show time of login on current server by 20 last users
26. w -> show who is currently logged in/out server (what user doing)
27. who -> show who ..... (show ip)
28. man xxx -> help for xxx command
29. logout -> logout of server
30. ssh user@hostname -> ssh to a host
31. date -> show date time
32. command1 ; command2 -> using multiple command by ";"
33. chmod +xwr files ... -> change permission of files x:execute w:write r:read for all
34. chmod u+??? files ... -> change permission for user ( +:add , -:remove , o:other , g:group)
35. pwd -> show where you are now ($PWD)
36. echo -> display a line of text
37. echo [option] [string]
    -> echo -n Hello World (-n : no newline after string)
    Hello World
38. passwd -> change password of user
39. zip archivefile.zip file1 file2 ... -> compression file as zip
40. unzip archivefile.zip -> extract file zip
41. sftp [username]@[host]-> upload file from remote to host
1. Ex. I using my macbook to connect with http://bangpra.informatics.buu.ac.th with my username
2. Open terminal
1. $> sftp username@bangpra.informatics.buu.ac.th
2. password: ____
3. sftp> ? // to get help
1. using l__ for remote
2. using __ for host
3. using get to download file from host to remote
4. using put to upload file from remote to host
42. curl -o [URL] -> download file to into current directory from URL
43. wget [URL] -> download file or directory into current directory
44. wget -r [URL] -> download directory from URL to current directory
45. export PS1="change hosting name $" >> change user display
46. du -sh ${HOME} >> show disk usage from tree HOME
47. find ${HOME} -type f -size +1M -print | xargs ls -lh >> find file bigger >= 1MB from tree HOME
48. find ${HOME} -type f ! -name '*.mp3' -exec grep -l -- "findstring" {} \; >> to find findstring is contents in files which is not *.mp3 from tree HOME
49. tar -cvjf archive.tar.bz2 files...Compression file *.tar.bz2
50. tar -xvjf archive.tar.bz2 files...Extract file *.tar.bz2
51. tar -tvjf archive.tar.bz2 files...List archive file *.tar.bz2
52. tar -cvzf archive.tar.gz files...Compression file *.tar.gz
53. tar -xvzf archive.tar.gz files...Extract file *.tar.gz
54. tar -tvzf archive.tar.gz files...List archive file *.tar.gz
55. tar -cvJf archive.tar.xz files...Compression file *.tar.xz
56. tar -xvJf archive.tar.xz files...Extract file *.tar.xz
57. tar -tvJf archive.tar.xz files...List archive file *.tar.xz
58. ln source_file hlink_file...Make a hard link to source file
59. ln -s source_file slink_file...Make a soft link / symbolic link to source file
60. stat [option] <filename>... show file information
61. od [option] <base> <binaryfile>...show content binary file Ex1. od -t x1 file.pdf ... show to show file.pdf as one byt