I know, all are well written in the documentation. This is a note for myself to use VSCode/VSCodium snippets in Linux.

• Setup a snippet by clicking Ctrl + Shift + P, select Snippets: Configure Snippets.

• Select New Global Snippets file...

• Put something like this inside the snippet:

{
	"Insert timestamp": {
		"prefix": "date",
		"description": "Output a date in timestamp (YY-MM-DDHH:MM:SS)",
		"body": [
			"$CURRENT_YEAR-$CURRENT_MONTH-$CURRENT_DATE $CURRENT_HOUR:$CURRENT_MINUTE:$CURRENT_SECOND",
		]
	}
}

This snippet can add a timestamp to any files you want. The prefix of the snippet is date. Remember this.

• Open any files and type date. I hope I can see autocomplete pops up but nothing.

• Go to menu, click Preferences -> Settings.

• Setup "Editor: Tab Completion" to onlySnippets, if it was off originally

Go to your file, type date and click Tab key. Ta-da, see a timestamp in your file!

You can also add multiple lines like this in the body.

"body": [
	"## $CURRENT_YEAR-$CURRENT_MONTH-$CURRENT_DATE $CURRENT_HOUR:$CURRENT_MINUTE:$CURRENT_SECOND",
	"### A title",
	"- ",
	"",
	"### Something here",
	"- ",
	"",
	"### Another thing here",
	"- ",
	"",
]

Done!