bash: Use a file as standard input to a command.

indigowinged

Take into account the main readme for this section. README first.

The default standard input on Linux is the keyboard, but a file can also be used.

Standard input using keyboard. When you type in a echo command for example:

$ echo blue moon
blue moon

Commands can also take standard input from a file.

$ sort < inputfile

I said blue moon of Kentucky
Keep on shining
These are lines used as input