suggestion for trimfq q=0

[ndaniel]

Would be possible that when running seqtk with "-q 0" (that is "seqtk trimfq -q0 -l N input.fq") the input FASTQ reads are trimmed to the first N bp automatically (and no trimming based quality score is done)?

This would be useful for input FASTQ files which have reads with different sizes.

Daniel

[ndaniel]

This "seqtk trimfq -q0 -l N input.fq" works by trimming all the reads to the first N bp but a lot of extra unnecessary computations are done.

[lh3]

Added an option -L to trim to fixed length (via 46cd37e).