Another reference script for generating random DNA sequence. Simply execute the script followed by length of the DNA you want to synthesize. ./dna_synth.sh 30000 will return a fasta formatted file (with a > header) of 3000 bases For reference, a netbook with Celeron N3060 processor and 4GB of ram running Ubuntu Mate 20.10 on battery generating a sequence the size of Deinococcus radiophilus genome takes below time from start to finish. ~~~ real 0m2.681s user 0m2.495s sys 0m0.443s ~~~ A computer with Ryzen 9 5950x and 64GB of ram completed the same task in: ~~~ real 0m0.455s user 0m0.461s sys 0m0.037s ~~~ A 100bp example fasta output is included, generated via ./dna_synth.sh 100 CLI output for the process was : ~~~ ################################################## Total sequence composition is as follows -------------------------------------------------- 22 A 32 T 24 C 22 G -------------------------------------------------- GC content is 46.00 % ################################################## ~~~