hadd(1) General Commands Manual hadd(1) (NAME) hadd - ROOT (SYNOPSIS) hadd [-a] [-f] [-f[0-9]] [-fk] [-ff] [-k] [-L] [-Ltype] [-O] [-T] [-v V] [-j J] [-dbg] [-d D] [-n N] [-cachesize CACHESIZE] [-experimental-io-features EXPERIMENTAL_IO_FEATURES] TARGET SOURCES... (DESCRIPTION) (trees) ROOT ROOT . -f (<<>>) . (OPTIONS) -a . -f . -f[0-9] i j i*100 + j ( -f505). (j) 0 ( ) 9 ( ) . (i) ZLIB 1 LZMA 2 LZ4 4 ZSTD 5 . : 101 (ZLIB) 207 (LZMA) 404 (LZ4) 505 (ZSTD). 101 (kDefaultZLIB) . ROOT::RCompressionSetting TFile::TFile . -fk (baskets) ( -O ). fk ( 206 -fk206) . -ff . -k . -L FILE -Ltype. FILE <> . TDirectory . <<#>> . -Ltype . -Ltype FILE -L . <> <> . -L . -O (basket size) TTree. -T (Trees). -v (verbosity): 0 99 . -j J . . -dbg . -j . -d . -n N ( 0 ). -cachesize (prefetching cache) / ( 0 ). -experimental-io-features . ROOT::Experimental::EIOFeatures . TARGET (). SOURCES . hadd(1)