`man bash` , search for "<<" see the "Here Strings" section. You can also search https://www.google.com/search?q=bash https://www.google.com/search?q=bash and

`man bash` , search for "<<" see the "Here Strings" section. You can also search https://www.google.com/search?q=bash https://www.google.com/search?q=bash and follow links to "Documentation" xargs echo <<EOL > line 1 > line 2 > EOL line 1 line 2 $ cat <<EOL > line 1 > line 2 > EOL line 1 line 2 line-terminators get eaten by xargs