Steps to download and install BLAST

$ wget ftp://ftp.ncbi.nlm.nih.gov/blast/executables/release/release/2.2.24/blast-2.2.24-x64-linux.tar.gz
$ tar zxvf blast-2.2.24-x64-linux.tar.gz
$ cd blast-2.2.24/bin
$ ls
bl2seq blastall blastclust blastpgp copymat fastacmd formatdb formatrpsdb impala makemat megablast rpsblast seedtop