filter out the data on the basis of values from other data frame

[str_guru]

i have two data frames df1 and df2, i want to filter out the data from df2 on the basis of values in df1.

df1 <- data.frame(name = c("col1","col17","col19","col22","col3","col4","col6","col8","col9","col11","col13"))

df2 <- data.frame(name = c("col1","col2","col3","col4","col5","col6","col7","col8","col9","col10","col11","col12","col13","col14","col15","col16","col17","col18","col19","col20","col21","col22"),
                     duration = c(70,45,50,50,60,10,70,80,90,100,100,90,80,10,30,20,20,40,40,50,50,100))

the output should be look like

name	duration
col1	70
col3	50
col4	50
col6	10
col8	80
col9	90
col11	100
col13	80
col17	20
col19	40
col22	100

[martin.R]

merge(df1, df2)

(adding extra text to meet minimum characters required)