Possible Duplicate:
Correct textual name for <<
I am learning about Go and saw this usage I've never seen before (from http://golang.org/doc/install.html):
$ cat >hello.go <<EOF
package main
import "fmt"
func main() {
fmt.Printf("hello, world\n")
}
EOF
Curious, I tried it myself:
$ echo <<EOF hello
> asdf
> asdf
> EOF
hello
$ echo <<test hello
> hello
> test
hello
I am aware of redirecting standard input to read from a file instead (via < operator), but I've never seen <<, and not with this start/end delimiter business. (I know about >> for appending but this seems different) It's extremely hard to search for <<; could someone point me in the right direction?
