<aside> 💡 Fasta index files are created from fasta files and store information about the fasta file for fast access.
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cat AAB_6.re.fa.fai
AAB_6-0 64 9 60 61
AAB_6-1 64 84 60 61
AAB_6-12 64 160 60 61
AAB_6-15 65 236 60 61
Column 1: The contig name. In your FASTA file, this is preceeded by '>' Column 2: The number of bases in the contig Column 3: The byte index of the file where the contig sequence begins. (Notice how it constantly increases by roughly the amount in column 2?) Column 4: bases per line in the FASTA file Column 5: bytes per line in the FASTA file