(ASCII-Numeric) fastx_toolkit zcat -f $input | fastq_quality_converter $QUAL_FORMAT -o $output -Q $offset ASCII (letters) quality scores Numeric quality scores 33 64

**What it does** Converts a Solexa FASTQ file to/from numeric or ASCII quality format. .. class:: warningmark Re-scaling is **not** performed. (e.g. conversion from Phred scale to Solexa scale). ----- FASTQ with Numeric quality scores:: @CSHL__2_FC042AGWWWXX:8:1:120:202 ACGATAGATCGGAAGAGCTAGTATGCCGTTTTCTGC +CSHL__2_FC042AGWWWXX:8:1:120:202 40 40 40 40 20 40 40 40 40 6 40 40 28 40 40 25 40 20 40 -1 30 40 14 27 40 8 1 3 7 -1 11 10 -1 21 10 8 @CSHL__2_FC042AGWWWXX:8:1:103:1185 ATCACGATAGATCGGCAGAGCTCGTTTACCGTCTTC +CSHL__2_FC042AGWWWXX:8:1:103:1185 40 40 40 40 40 35 33 31 40 40 40 32 30 22 40 -0 9 22 17 14 8 36 15 34 22 12 23 3 10 -0 8 2 4 25 30 2 FASTQ with ASCII quality scores:: @CSHL__2_FC042AGWWWXX:8:1:120:202 ACGATAGATCGGAAGAGCTAGTATGCCGTTTTCTGC +CSHL__2_FC042AGWWWXX:8:1:120:202 hhhhThhhhFhh\hhYhTh?^hN[hHACG?KJ?UJH @CSHL__2_FC042AGWWWXX:8:1:103:1185 ATCACGATAGATCGGCAGAGCTCGTTTACCGTCTTC +CSHL__2_FC042AGWWWXX:8:1:103:1185 hhhhhca_hhh`^Vh@IVQNHdObVLWCJ@HBDY^B ------ This tool is based on `FASTX-toolkit`__ by Assaf Gordon. .. __: http://hannonlab.cshl.edu/fastx_toolkit/