Hi,

I don't know why I can't sort my bam files 

    dhcp179185:unknown$ samtools sort SRR1593424.bam SRR1593424_sorted
    [bam_sort] Use -T PREFIX / -o FILE to specify temporary and final output files
    Usage: samtools sort [options...] [in.bam]
    Options:
      -l INT     Set compression level, from 0 (uncompressed) to 9 (best)
      -m INT     Set maximum memory per thread; suffix K/M/G recognized [768M]
      -n         Sort by read name
      -t TAG     Sort by value of TAG. Uses position as secondary index (or read name if -n is set)
Do 

    samtools sort  -o SRR1593424_sorted SRR1593424.bam