Can you write a command to erase all files in the current directory including all its sub-directories?
What is grep command in unix with examples?
Write a grep (or grep) command that selects the lines from a file that have exactly three characters.
How is the command '$cat file2 ' different from '$cat >file2 and >> redirection operators ?
How to get a particular string as your prompt ? Give syntax of that command?
What is the procedure of "at" and crontab" commands?
in a growing log file how will you see the 1st 99 lines?
which script will invoke first ,when /etc/init.d starts
What is the different between UNIX command and UNIX shell script?
what is telnet?
what are the uses of filters?
what is the command to get help on a UNIX terminal?
if we create a file, in that 10 rows(means 1,2,....9,10 like). i want 7 row exactly, which command use in unix? plz send this question.