单选题A system administrator would like to verify the user definitions in the /etc/passwd file. Which of the following commands will accomplish this？（）AusrckBsysckClssecDlsuser
单选题
A system administrator would like to verify the user definitions in the /etc/passwd file. Which of the following commands will accomplish this？（）
A
usrck
B
sysck
C
lssec
D
lsuser
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解析：
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