Question 2b A1

[Volodymyr Lyubinets]

Since grep (egrep) is usually applied to text files, if we won't supply
one it will search for pattern in the standard input. Since we aren't
told any file name to check, will our answer look something like:

egrep "pattern"
?

And another question is: how do you stop input into grep (if entering
from keyboard)?

[Brad Lushman]

Post by Volodymyr Lyubinets
Since grep (egrep) is usually applied to text files, if we won't supply
one it will search for pattern in the standard input. Since we aren't
egrep "pattern"
?

Your text file should contain just the pattern; nothing else.

Post by Volodymyr Lyubinets
And another question is: how do you stop input into grep (if entering
from keyboard)?

Ctrl+D at the beginning of a line.