Option used with the grep command to delete lines?

 To know the exit status of a command, we can use ____

Which command duplicates its input character stream?

Which symbol is used for finding the length of the string?

Which of the following options displays only the filenames containing the specified pattern?

Which command is used to get the exact number of characters present in a file in Linux?

Which of the following is the most common type of file?

What is the correct syntax for the grep command?

Which of the following is the correct syntax for using the sed command?

What does the -S option in the ls command do?