Edit: Indeed, I remember now using it to comment out a block of the script.
]]>EDIT: scratch that, I was almost completely wrong. The colon and the open here-document would in effect comment out everything in the here-document. As that line is commented with the hash, the here-document is never opened. So with the hash that line does absolutely nothing, and subsequent lines are interpreted by bash. Without the hash, subsequent lines would be ignored.
]]>#: <<'END'
No doubt, I had a purpose, googled it, found this snippet, pasted it, it did what I wanted it to do, then moved on. Does this mean anything, or is it just some cryptic comment?
]]>