append another command to any given command

[smartekIT]

Hi,
Thanks for the great project. my question is there any way I could append a command in front of any given command?
for example we echo data to a file, each time we have to type the whole content with the command. I was thinking if I could append the command Echo in front a pasted data by any user:
echo xxxxxx [given data] >> data.log

Thanks