2 ways for writing the comment to shell bash.
Example and troubleshooting via Link to details
Using the # character for comment
In Bash, a comment starts with the hash symbol (#). Anything after # on that line is considered a comment and is ignored by the Bash interpreter
# This is a comment in Bash
# Output:
# (No output, as comments are not executed)Using the doctype Here Document for comment multiple line
Bash doesn’t have a specific syntax for multi-line comments like some other languages, but you can use a trick with the : command and a ‘here document’ to achieve the same effect.
: << 'END_COMMENT'
This is a
multi-line comment
in Bash
END_COMMENT
# Output:
# (No output, as comments are not executed)