Comments (1)
:
and $_
are POSIX. bash
has both legacy [
and new [[
, old let
and new $((
, preserving compatibility, there is no basis for panic.
:
did not change for over 43 years nor it'll change now, the behaviour matches sh
. The documentation said :
does not react to anything passed on, it works as the standard demands to do. Both features are documented and combining documented stuff together doesn't count as undocumented in my view.
from pure-bash-bible.
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from pure-bash-bible.