Command task

A command task will execute the same command on several nodes concurrently.

This works with both Unix and Windows nodes.

You just have to check that the command line you enter is valid for the node.

For example:

echo "Hello!" on a Unix node (SSH server uses a POSIX compatible shell to execute the command)
Write-Host 'Hello!' on a Windows node (SSH or WinRM server uses Powershell).

Task characteristics

In addition to the common task characteristics, here are those specific to command tasks.

Filter (by names and tags) the nodes on which the command will be executed.

NB: This filter is combined with the filter applied at the project level.

When a command is executed on several nodes, you can specify the maximum number of nodes to be processed concurrently.

Maximum number of retry attempts if the command execution fails on a node. Defaults to 0 (no retry).

Delay in seconds between retry attempts. Defaults to 0 (immediate retry).

Controls when node execution logs are retained:

Always – logs are kept for every execution
On failure or abort – logs are kept only when the execution fails or is aborted
Never – logs are discarded