echo $RANDOM

RANDOM Each time this parameter is referenced, it expands to a random integer between 0 and 32767.  Assigning a value to RANDOM initializes (seeds) the sequence of random numbers.  If RANDOM is unset, it loses its special properties, even if it is subsequently reset.


【 在 VChartMM 的大作中提到: 】
: [ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo "Lucky boy";
: 什么意思？
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