Error executing process > 'generate_data'

Caused by:
  Process `generate_data` terminated with an error exit status (1)


Command executed:

  echo "Stage 1: Initial data" > input.txt
  echo "Timestamp: $(date)" >> input.txt
  echo "Hostname: $(hostname)" >> input.txt
  echo "Pipeline ID: 2738876" >> input.txt

Command exit status:
  1

Command output:
  (empty)

Command error:
  .command.run: line 178: Unexpected: unbound variable

Work dir:
  s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/4a/ba7f19e669710f7c0781b94e3bbc6d

Container:
  artifactory.natera.com/dockerhub/ubuntu:latest

Tip: you can try to figure out what's wrong by changing to the process work dir and showing the script file named `.command.sh`