Off topic:unpacking zipped file in R

Question

[zizigolu]

hello,

i have 96 arrays in a zipped file, i did so to unpacking but recieved error, what happened please?

i changed directory and typed:

> untar("GSE63706_RAW.tar", exdir="data")
> cels = list.files("data/", pattern = "CEL")
> sapply(paste("data", cels, sep="/"), gunzip)
Error in match.fun(FUN) : object 'gunzip' not found
>