i can get list of available packages by > r<-available.packages() No of available packages > length(r[,1]) [1] 3739
single package name > r[1,1] [1] "ACCLMA" i want download all packages starting with "A" / "a" alphabets, with their source code, pdf manual/vignettes from internet -- View this message in context: http://r.789695.n4.nabble.com/how-to-download-source-code-pdf-manual-for-any-package-from-internet-tp4630354.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.