Unix command is not executed in its entirety in the "SSH Run Command" activity

I already have the successful connection via SSH to a UNIX server, now I want to execute commands by the “SSH Run Command” activity to extract the results, but the whole command is not executed, only the first text of the command is executed and the rest is not. I have tried several ways, such as passing the command through a variable, or passing it through a .txt file, but in all cases only the first text of the command is executed.

I’ve checked that it doesn’t read blank spaces, special characters, etc.

For example:
Command: “Screen -ls”
Execute: “Screen” . Apparently it doesn’t read white space or (|,-,@) characters.

Please someone can help me with this problem.