A.DNS B.FTP C.SMTP D.None of the above
A.30 22()()5/home/idss/backup.sh>/dev/null 2>&1 B.30 225()()/home/idss/backup.sh>/dev/null 2>&1 C.30 22()5()/home/idss/backup.sh>/dev/null 2>&1 D.30()/22()()5/home/idss/backup.sh>/dev/null 2>&1
在shell中,定義如下: stock=(""shenshi""""hushi""""chuangyeban"") stock[1]=hello stock[2]=world" ()
A.執(zhí)行echo"$stock[1],$stock[2]",結(jié)果為:hello[1],world[2] B.執(zhí)行echo${stock[1]},${stock[2]},結(jié)果為:hello[1],world[2] C.執(zhí)行echo${stock[@]},結(jié)果為:2018 hello world D.執(zhí)行echo${stock[*]},結(jié)果為:shenshi hushi chuangyeban