back to : [[mrowisko:anthill_desc_v04|Mrowisko / Anthill ver 0.4]]

====== nextflow ======
Nextflow is a workflow system for creating scalable, portable, and reproducible workflows.

Documentation page : https://www.nextflow.io/docs/latest/

Training / workshop : https://training.nextflow.io/2.1.3/hello_nextflow/01_hello_world/

Nextflow in version 22.12 removed DSL1 ([[https://www.nextflow.io/docs/edge/migrations/dsl1.html|more]]). To install nextflow with DSL1 support see [[mrowisko:snote003|install Nextflow with DSL1]].

===== install nextflow =====
Start [[:howtouseslurm_000|interactive session]]:
  tmatejuk@jumphost-17:~$ srun -c1 --mem=1G --pty bash -l


Use bellow commands to install nextflow
<code>
cd /tmp
curl -s https://get.nextflow.io | bash

chmod +x nextflow

mkdir -p $HOME/.local/bin/
mv nextflow $HOME/.local/bin/
</code>

Consider adding ''nexflow'' location to your shell. In Bash, add ''export PATH="$PATH:$HOME/.local/bin"'' to ''~/.bashrc''.


===== after install tests =====
Confirm nextflow sucessful instalation.


Check ''nextflow'' version
<code>
tmatejuk@jumphost-17:~$ srun -c1 --mem=1G --pty bash -l


tmatejuk@node090:~$ nextflow info
  Version: 25.04.8 build 5956
  Created: 06-10-2025 21:19 UTC (23:19 CEST)
  System: Linux 6.1.0-32-amd64
  Runtime: Groovy 4.0.26 on OpenJDK 64-Bit Server VM 17.0.16+8-Debian-1deb12u1
  Encoding: UTF-8 (ANSI_X3.4-1968)

tmatejuk@node090:~$ exit
</code>


Run nextflow
<code>
tmatejuk@jumphost-17:~$ srun -c1 --mem=1G --pty bash -l

tmatejuk@node098:~$ nextflow run hello

 N E X T F L O W   ~  version 25.04.8

Pulling nextflow-io/hello ...
 downloaded from https://github.com/nextflow-io/hello.git
Launching `https://github.com/nextflow-io/hello` [desperate_venter] DSL2 - revision: 2ce0b0e294 [master]

executor >  local (4)
[b5/f56e01] sayHello (3) | 4 of 4 ✔
Bonjour world!

Ciao world!

Hola world!

Hello world!


tmatejuk@node090:~$ exit
tmatejuk@jumphost-17:~$
</code>