# Using containers - /bin/bash: .command.sh: No such file or directory

**URL:** <https://community.seqera.io/t/using-containers-bin-bash-command-sh-no-such-file-or-directory/2244>\
**Category:** Training\
**Created:** [June 30, 2025, 1:09am UTC](https://community.seqera.io/t/using-containers-bin-bash-command-sh-no-such-file-or-directory/2244 "2025-06-30T01:09:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dbojanova](https://dub1.discourse-cdn.com/flex013/user_avatar/community.seqera.io/dbojanova/32/1484_2.png) [@dbojanova](https://community.seqera.io/u/dbojanova)\
**Post date:** [June 30, 2025, 1:09am UTC](https://community.seqera.io/t/using-containers-bin-bash-command-sh-no-such-file-or-directory/2244/1 "2025-06-30T01:09:08Z")

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When following the Containers portion of Hello Nextflow, I run into this error and cannot seem to find a solution:

```auto
[47/585adf] sayHello (2) | 3 of 3, cached: 3 ✔
[da/a3315d] convertToUpper (2) | 3 of 3, cached: 3 ✔
[2a/a0e2f5] collectGreetings | 1 of 1, cached: 1 ✔
[93/8f2e37] cowpy | 0 of 1 ✘
There were 3 greetings in this batch
ERROR ~ Error executing process > 'cowpy'

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

Command executed:

  cat COLLECTED-test-batch-output.txt | cowpy -c "turkey" > cowpy-COLLECTED-test-batch-output.txt

Command exit status:
  1

Command output:
  (empty)

Command error:
  /bin/bash: .command.sh: No such file or directory

Work dir:
  /workspaces/training/hello-nextflow/work/93/8f2e370dc9610d506c8958f958ed24

Container:
  community.wave.seqera.io/library/cowpy:1.1.5--3db457ae1977a273

Tip: view the complete command output by changing to the process work dir and entering the command `cat .command.out`

 -- Check '.nextflow.log' file for details

```

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<div class="post-metadata">

**Author:** ![mribeirodantas](https://dub1.discourse-cdn.com/flex013/user_avatar/community.seqera.io/mribeirodantas/32/235_2.png) [@mribeirodantas](https://community.seqera.io/u/mribeirodantas)\
**Post date:** [July 1, 2025, 3:10pm UTC](https://community.seqera.io/t/using-containers-bin-bash-command-sh-no-such-file-or-directory/2244/2 "2025-07-01T15:10:36Z")

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Hi @dbojanova ! Welcome to the community forum 🙂

Could you please give more detail about how you’re going through the training? You’re in GitHub Codespaces? Local dev container?

When you run the `hello-containers-2.nf` script in `./solutions/5-hello-containers/`, what happens?