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Process substitution is supported on systems that support named pipes (FIFOs) or the `/dev/fd' method of naming open files. It takes the form of
>(list)form is used, writing to the file will provide input for list. If the
<(list)form is used, the file passed as an argument should be read to obtain the output of list. Note that no space may appear between the
>and the left parenthesis, otherwise the construct would be interpreted as a redirection.
When available, process substitution is performed simultaneously with parameter and variable expansion, command substitution, and arithmetic expansion.