''' This script greets the planet ''' echo "Hello World"
# This script greets the planet echo "Hello World"
ShellCheck found a command name containing an especially unusual character like a tab or linefeed. This is most likely due to a syntax issue.
In the example, this was due to a Python style documentation string, which a shell will merely interpreted as a multi-line command name sandwiched between two empty strings.
If you have a command name that does contain a tab or linefeed you can ignore this message, but... wow.
ShellCheck is a static analysis tool for shell scripts. This page is part of its documentation.