perlvar NAME
$! When referenced, $! retrieves the current value of the C
${^WARNING_BITS} The current set of warning checks enabled by the
$EXCEPTIONS_BEING_CAUGHT
%INC The hash %INC contains entries for each filename included via the
$SUBSCRIPT_SEPARATOR
$@ The Perl syntax error message from the last eval()
${^WIN32_SLOPPY_STAT} If this variable is set to a true value, then
$% The current page number of the currently selected output channel. Mnemonic:
$^T The time at which the program began running, in seconds since the epoch (beginning of 1970). The values returned by the -M, -A
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