我如何检查数组是否包含bash中特定值以外的其他内容?
问题描述：
arr=( d d d a)
下面的代码应该检查它是否包含 d .有没有类似的方法来检查它是否包含除 d 之外的其他内容?
The code below is supposed to check if it contains d. Is there a similar way to check if it contains anything else than d?
if [[ " ${arr[*]} " == *" d "* ]]; then
echo "arr contains d"
fi
答
只要您不在Array元素中使用空格，就可以使用:
As long as you're not using space in Array elements you can use:
[[ " ${arr[*]} " == *" "[^d]" "* ]] && echo "array has non-d element" || echo "no"
测试:
arr=(d d d a)
[[ " ${arr[*]} " == *" "[^d]" "* ]] && echo "array has non-d element" || echo "no"
array has non-d element
arr=(d d d)
[[ " ${arr[*]} " == *" "[^d]" "* ]] && echo "array has non-d element" || echo "no"
no