what is the shell for dos,nt operating systems?
Write a command to find all of the files which have been accessed within the last 30 days.
How do you grep a case insensitive?
Assume the following files are in the working directory prompt> ls -l tasks -rw-r--r-- 1 alex student 1423 Feb 21 14:01 tasks What command can Alex use to give everyone permission to write to the file? What will the ls -l command display if he does so?
What is the unix command to confirm a remote host is alive or not?
in a growing log file how will you see the 1st 99 lines?
How will you know who are the users logged in to the system before 15 minutes?
What is the use of pipes?
What is pid?
What UNIX command will control the default file permissions when files are created?
What is grep and how do you use it?
What is a command and examples?
what does the 'tee' command do?