Recognize internal variables new in bash 5.3 #3106
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From the [email protected] announcement "Bash-5.3-beta available": q. GLOBSORT: new variable to specify how to sort the results of pathname expansion (name, size, blocks, mtime, atime, ctime, none) in ascending or descending order. w. BASH_MONOSECONDS: new dynamic variable that returns the value of the system's monotonic clock, if one is available. x. BASH_TRAPSIG: new variable, set to the numeric signal number of the trap being executed while it's running. https://lists.gnu.org/archive/html/bug-bash/2024-12/msg00120.html
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From the [email protected] announcement "Bash-5.3-beta available":