Text can be included in the shell script by using a here document, a special form of input redirection.
The << symbol is used to indicate that text should be read up to a given mark. For example:
#!/bin/sh # this script outputs the given text before it runs cat << EOF This shellscript is currently under development, please report any problems to Danny (firstname.lastname@example.org) EOF exec /usr/local/test/bin/test_version
The text is read from the script until a pattern is found which matches that after the << symbol; execution then proceeds as normal.