Here document

Sending multiple lines into a pipe
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A Here document is a set of lines in a script which is to be sent to a command as it's input.

It consists of <<deliminator followed by multiple lines and then a line with just demiminator to show the end of the document.

For example, we have a 4 line document that will be sent to the command as it's standard input: 

1command <<TERMINATOR
2line 1
3line 2
4line $someVar
5line 4
6TERMINATOR

See also: Here strings

Last modified January 21, 2022: Add here strings & documents (c472c1f)