How do you delete a file?

A$.$ touch filename

B$.$ less filename

C$)$ rm filename

D$.$ dl filename

Using which command you can view process running in Unix?

A$.$ view

B$.$ findproc

C$.ps$

D$.$ grep

Using which command you can find text string "hello" from the file.txt$?$

A$.$ find

B$.$ grep

C$.$ search

D$.$ cat

E$.$ more