Question

Which command is used for killing a line?

(a) ctrl-k

(b) del

(c) esc

(d) ctrl-u

This question was addressed to me in class test.

This key question is from General Purpose Commands in portion The Unix Architecture & General Purpose Utilities of Unix

Answer 1

Correct answer is (d) ctrl-u

The explanation is: If the command line contains too many mistakes, we could prefer to kill the line altogether without executing it using ctrl-u. It erases everything in the line and returns the cursor to the beginning of the line.