A./etc/passwd
B./etc/security/user
C./etc/security/environ
D./etc/security/passwd
A./etc/passwd
B./etc/security/user
C./etc/security/environ
D./etc/security/passwd
A./etc/motd
B./var/adm/ras/bootlog
C./var/adm/ras/welcome
D./etc/passwd
A.ls-al/etc|less
B.ls-al/etc|cat
C.ls-al/etc>less
D.ls-al/etc|more
A.可以在/etc/porfile里面设置对所有用户生效,永久
B.在用户家目录下的.bash_profile文件中添加变量对单一用户生效,临时生效
C.可以使用export定义,只对当前shell生效,永久有效
D.以上说法都不对
A.余额
B.入口站
C.门架信息
D.有效性