DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/linux/apptainer-exec.md

apptainer exec

Execute a command within an Apptainer container. See also: apptainer run, apptainer shell. More information: https://apptainer.org/docs/user/main/cli/apptainer_exec.html.

• Execute a command inside a container:

apptainer exec {{path/to/image.sif}} {{command}}

• Execute a command with arguments:

apptainer exec {{path/to/image.sif}} {{command}} {{arg1 arg2 ...}}

• Execute a command with a bind mount from host to container:

apptainer exec {{[-B|--bind]}} {{path/to/source}}:{{path/to/destination}} {{path/to/image.sif}} {{command}}

• Execute a command with environment variables:

apptainer exec --env {{variable}}={{value}} {{path/to/image.sif}} {{command}}

• Execute a command in fully isolated mode (contained filesystem, PID, IPC, and clean environment):

apptainer exec {{[-C|--containall]}} {{path/to/image.sif}} {{command}}

• Execute a command with a writable temporary filesystem overlay:

apptainer exec --writable-tmpfs {{path/to/image.sif}} {{command}}

• Execute a command with NVIDIA GPU support:

apptainer exec --nv {{path/to/image.sif}} {{command}}

• Display help:

apptainer exec {{[-h|--help]}}