单选题A file named "core" exists in the current directory. Which of the following commands should be used to determine what created the "core" file?（）A dump -t core B strings core C trace -a core D crash core /unix_up
单选题
A file named "core" exists in the current directory. Which of the following commands should be used to determine what created the "core" file?（）
A
dump -t core
B
strings core
C
trace -a core
D
crash core /unix_up
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