Please show how you test for each one

QUESTION 17 Which command is used to copy all files having the string chap and any two characters after that to the progs directory? cp chap?? progs cp chap progs cp chap[12]/progs/*.* cp chap?? /progs/" None of the above QUESTION 18 Which notation is an alternative to the test command? 0 - ( QUESTION 19 Which awk command outputs all lines where the second field is larger than the line number: $2 > LN (print) $2> SLN{print 50 ) NR