Tag: operators

What does ‘< <' command do in bash?

bash command-line command-line-arguments linux operators

I can see >> is append and > is overwrite but I do not know what < < does with a space in the middle. What does this do, and does the direction of these arrows matter? For example: Answer < redirects a file as input to a command. <(…) is a process substitution – it is replaced by a

bash command XOR ^ anothercommand

bash delimiter linux logical-operators operators

In the example below: what’s the expected behaviour of the XOR operator in shell? So when we enter what triggers anothercommand to run (if it will execute at all)? Answer If you enter command ^ anothercommand, you are simply providing command with two arguments, ^ and anothercommand. There is no operator here. anothercommand will only run if command decides to