請教shellscript parse [ 1, 2 ] 中數字 - Linux

※ 引述《guessi (沒)》之銘言：
: echo "x [ 12, 34 ]"|sed 's/[^0-9]/ /g'|awk '{print$1==$2?"equal":"not equal"}'

echo "asdfwer [ 1234, 3456 ]" | sed 's:[^0-9]*\([0-9]*\)[^0-9]*\([0-9]*\)[^0-9]*:\1 -eq \2:' | xargs test || echo 'not eq'

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