> filenameredirect stdout>> filenameredirect stdout apending to file< filenameredirect stdin2> filenameredirect stderr/dev/stdout(also stderr, and stdin) for when you need to name a file, but want one of these.- Here doc :
<< end
some test
some more text
end
<<< "text message"here string: direct the string to stdin
$namesubstitute variable$(command)substitute output of command$(<file)substitute in file content: is a substitution and a redirect.<(command)substitute in name of a named-pipe that is connected to the stdout of the command.>(command)similar to above
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