1. LINUX PRESENTATION BY, Nikhil v jain

2. What Is Linux? • The most commonly used Operating System for this purpose is Linux - it's Open Source too, • It's based on Unix which was and is an operating systems designed from the ground up for a multiuser environment. What Is Linux? The most commonly used Operating System for this purpose the Linux is Open Source too, It's based on Unix which was and is an operating systems designed from the ground up for a multiuser environment. • What Is Linux? • The most commonly used Operating System for this purpose is Linux - it's Open Source too, • It's based on Unix which was and is an operating systems designed from the ground up for a multiuser environment.

9. Linux Basic and Advance Commands

10. ls command lists the files and directories under current working directory.

11. mkdir command is used to create one or more directories.

12. cd - change directories

13. Cat> command Create's a File

14. bc command is used for command line calculator.

15. rm linux command is used to remove/delete the file from the directory.

16. echo command prints the given input string to standard output.

17. cal command is used to display the calendar.

18. Whatis command displays the purpose of the command

19. ls -a command Lists all entries including hidden files.

20. Help command display help for a built-in command.

21. alias command allows to create a shortcut to a command.

22. free command displays information about free and used memory on the system.

23. awk command is used to manipulate the text.

24. Time command measure Program running time

25. pwd - Print Working Directory. pwd command prints the full filename of the current working directory.

26. who command list the names of users currently logged in, their terminal, the time they have been logged in, and the name of the host from which they have logged in.

27. cmp linux command compares two files and tells you which line numbers are different.

28. cut command is used to cut out selected fields of each line of a file.

29. date command prints the date and time.

30. df command is used to report how much free disk space is available for each mount available.

31. diff command is used to find differences between two files.

32. du command is used to report how much disk space a file or directory occupies.

33. egrep command is used to search and find one or more files for lines that match the given string or word.

34. file command tells you if the object you are looking at is a file or a directory.

35. head command is used to display the first ten lines of a file, and also specifies how many lines to display.

36. tail command is used to display the last or bottom part of the file. By default it displays last 10 lines of a file.

37. Dig command performs DNS lookup

38. man command which is short for manual, provides in depth information about the requested command

39. grep command selects and prints the lines from a file which matches a given string or pattern.

40. rmdir command is used to delete/remove a directory and its subdirectories.

41. groups command is used to print the groups a user is in.

42. hostname specifies the name of the host.

43. host command is used to find the ip address of the given domain name and also prints the domain name for the given ip.

44. id command prints the effective(current) and real userid(UID)s and groupid(GID)s.

45. jobs command is used to list the jobs that you are running in the background and in the foreground.

46. kill command is used to kill the background process.

47. last command is used to display the last logged in users list.

48. whoami command Print the current user id and name (`id -un')

49. ps command is used to report the process status. ps is the short name for Process Status.

50. Dirs command Display list of remembered directories