26. Which command will be used with vi editor to insert text to left of cursor?
A. s
B. S
C. a
D. i
E. None of the above
27. In vi editor, forward search is performed using the command.
A. :pat
B. ?pat
C. /pat
D. All of the above
E. None of the above
28. Which of the following special shell variables is used to process number of the last background job?
A. $!
B. $#
C. $0
D. $*
E. None of the above
29. Which option will be used with ps command to slow the entire command line of the process being run?
A. -4
B. -f
C. -1
D. -2
E. None of the above
30. Which of the following command addresses all users who are currently hooked on?
A. write
B. mail
C. wall
D. mesg
E. None of the above