shell-script.nf

#!/usr/bin/env nextflow
/*
 * Copyright 2020-2022, Seqera Labs
 * Copyright 2013-2019, Centre for Genomic Regulation (CRG)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
nextflow.enable.dsl=1
params.data = 'zzz'

process foo {
  debug true
  input:
    each x from ('alpha','omega')

  shell:
    '''
    echo Home: $HOME - Input: !{x} !{params.data}
    '''
}