command <<< | command <<< | ||||
set -euo pipefail | set -euo pipefail | ||||
if [ ! ${fq3} ]; then | |||||
if [ ${fq3} != "" ]; then | |||||
cat ${fq1} ${fq2} > ${fq_m} | cat ${fq1} ${fq2} > ${fq_m} | ||||
else | else | ||||
cat ${fq1} ${fq2} ${fq3} > ${fq_m} | cat ${fq1} ${fq2} ${fq3} > ${fq_m} |