2. Extract longest transcript from gtf format annotation file based on gencode/ensembl/ucsc database: help infomation: $ GetLongestTransFromGTF -h usage: GetLongestTransFromGTF --database ensembl --gtffile Homo_sapiens.GRCh38.101.gtf.gz --genome Homo_sapiens.GRCh38.dna.primary_assembly.fa.gz...