dont reindex bam if index already exists
dont reindex bam if index already exists

trinityrnaseq/trinityrnaseq,trinityrnaseq/trinityrnaseq,trinityrnaseq/trinityrnaseq,trinityrnaseq/trinityrnaseq,trinityrnaseq/trinityrnaseq,trinityrnaseq/trinityrnaseq,trinityrnaseq/trinityrnaseq