Question

We can also execute previous commands by context.

(a) True

(b) False

I have been asked this question by my college director while I was bunking the class.

My question is based upon Shell Variables in section Customizing the Environment & More File Attributes of Unix

Answer 1

Right option is (a) True

The best explanation: It may happen that we don’t remember the event numbers of the commands except for the immediately preceding two or three, but we remember that the command started with a specific letter or string. In such a case, we can execute previous commands by context by using ‘v’ along with ! or r. For example,