What command would you use to check how much memory is being used by linux?
What command should you use to check the number of files and disk space used and each user’s defined quotas?
How do I get to root in linux?
What is pwd in linux command?
what are the features of Linux?
How do I run a command in linux?
what is the UID and GID of root user? Can a normal user can change the ownership of a file? what is the command to change ownership of a file?
what is user mode & kernel mode?
What is the purpose of the 'chmod' command?
What is $$ in shell script?
What is shell scripting commands?
What can you tell about the tar command?
How to add Crete a new ftp user? or How to add a exiting user into FTP ?