how to rename all the columns names in r with the below row code example

Example 1: how to change column names in r

colnames(dataset) <- c('name1','name2',..)

Example 2: r rename columns

library(plyr)
rename(d, c("beta"="two", "gamma"="three"))
#>   alpha two three
#> 1     1   4     7
#> 2     2   5     8
#> 3     3   6     9