Bash version 4.0 released

"New features in Bash 4 include two new redirection operators; &>> which sends standard output and standard errors to a named file, and |&, synonymous with 2>&1 |, which redirects standard error to a pipe. Associative arrays can now be created using declare -A name, which allows for arrays to be indexed by arbitrary strings.

"A new ** expansion operator has been added; where * would expand to all files and directories in the current directory, ** expands to all files in the current directory and all directories below it."

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