File Not Found When Running Docker Script But Is Found In Another Docker Script - linux

Question

I am trying to run a script inside a docker that was published by google.
The command I use mounts some datafiles onto the docker in a file called '/input' (inside the docker).
When I run the script, it says that it does not find the input file.
However, I do use the -v flag, and I ran a script that makes sure the input file is there (inside the docker).
So in summary - when I run
find /input -name "*.fasta"
It outputs:
/input/ucsc.hg19.chr20.unittest.fasta
As needed, but when I run the script, it says
./dv-quick-start: 19: ./dv-quick-start: --ref=/input/ucsc.hg19.chr20.unittest.fasta: not found
Full Script:
#!/bin/sh
BIN_VERSION="1.0.0"
INPUT_DIR="${PWD}/quickstart-testdata"
DATA_HTTP_DIR="https://storage.googleapis.com/deepvariant/quickstart-testdata"
OUTPUT_DIR="${PWD}/quickstart-output"
sudo docker run \
-v "${INPUT_DIR}":"/input" \
-v "${OUTPUT_DIR}":"/output" \
google/deepvariant:"${BIN_VERSION}" \
find /input -name "*.fasta"
sudo docker run \
-v "${INPUT_DIR}":"/input" \
-v "${OUTPUT_DIR}":"/output" \
google/deepvariant:"${BIN_VERSION}" \
/opt/deepvariant/bin/run_deepvariant \
--model_type=WGS \ **Replace this string with exactly one of the following [WGS,WES,PACBIO,HYBRID_PACBIO_ILLUMINA]**
--ref=/input/ucsc.hg19.chr20.unittest.fasta \
--reads=/input/NA12878_S1.chr20.10_10p1mb.bam \
--regions "chr20:10,000,000-10,010,000" \
--output_vcf=/output/output.vcf.gz \
--output_gvcf=/output/output.g.vcf.gz \
--intermediate_results_dir /output/intermediate_results_dir \ **This flag is optional. Set to keep the intermediate results.
Full output:
/input/ucsc.hg19.chr20.unittest.fasta
--ref is required.
Pass --helpshort or --helpfull to see help on flags.
./dv-quick-start: 19: ./dv-quick-start: --ref=/input/ucsc.hg19.chr20.unittest.fasta: not found
I feel there is some misunderstanding on my behalf, and I would appreciate any help.
Should more information be needed to answer the question, let me know.

Answer 1

You have some extraneous text in your shell script that's causing a problem. Delete the "replace this string" and "this flag is optional" text and all of the whitespace before them, making the \ the very last character on those lines.
In a shell script you can break commands across multiple lines using a \. But, the \ must be the absolute very last character in the line; if it's not, it escapes the character that comes after it.
# one line: ls -al $HOME
ls -al \
$HOME
# two lines: ls -al " " more text here; $HOME
ls -al \ more text here
$HOME
In your example you've left some explanatory text in
sudo docker run \
...\
--model_type=WGS \ **Replace this string with exactly one of the following [WGS,WES,PACBIO,HYBRID_PACBIO_ILLUMINA]**
# This is seen as a separate command
--ref=/input/ucsc.hg19.chr20.unittest.fasta \
...
Since the "Replace this string..." text makes the \ not be the absolute last character in the line, it causes the shell to break the command. You then get two commands, a docker run command without the --ref option and what looks like trying to run --ref=... as a separate command; that corresponds to the two errors you get.