[R] rename columns with pattern

[Kuma Raj]

I want to rename columns 1 to 6 in the sample data set as  bp_1 to
bp_6. How could I do that in R?

Thanks

> dput(dff)
structure(list(one = c(1.00027378507871, 0.982313483915127, 1.1531279945243,
1.07400410677618, 1.22710472279261, 1.19762271047046, 1.10904859685147,
1.32060232717317), two = c(1.04707392197125, 1.00998288843258,
1.17598904859685, 1.09595482546201, 1.28599589322382, 1.26632675564591,
1.12986995208761, 1.30704654346338), three = c(1.06301619895049,
1.02743782797171, 1.1977093315081, 1.11466803559206, 1.2949441022131,
1.28365657768591, 1.1305452886151, 1.32089436459046), four = c(1.06994010951403,
1.03489904175222, 1.19799452429843, 1.1172022587269, 1.28742984257358,
1.27650013346977, 1.12265058179329, 1.30723134839151), five =
c(1.07019712525667,
1.03722792607803, 1.19174811772758, 1.11514168377823, 1.26594387405886,
1.25720010677582, 1.11339630390144, 1.29178507871321), six = c(1.11111909650924,
1.08407027150354, 1.24785877253023, 1.16373032169747, 1.31150581793292,
1.31042514031455, 1.16205338809035, 1.37122975131189), idd = 1:8),
.Names = c("one",
"two", "three", "four", "five", "six", "idd"), row.names = c(NA,
-8L), class = c("tbl_df", "data.frame"))
>