单选题A system administrator would like to modify the system default user characteristics so that each new user will now be assigned （by default） the csh shell rather than the ksh shell. Which of the following actions should be performed？（）ARun the command chlogin -shell cshBRun the command mkuser -default SHELL=cshCEdit /etc/passwd and change all ksh entries to cshDModify the contents of /usr/lib/security/mkuser.default file
单选题
A system administrator would like to modify the system default user characteristics so that each new user will now be assigned （by default） the csh shell rather than the ksh shell. Which of the following actions should be performed？（）
A
Run the command chlogin -shell csh
B
Run the command mkuser -default SHELL=csh
C
Edit /etc/passwd and change all ksh entries to csh
D
Modify the contents of /usr/lib/security/mkuser.default file
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