chmod 557 /bin/foo
chmod o+rwx.a+rx/bin/foo
chown 557 /bin/foo
chmod 755/bin/foo
第1题：
A. cd /var/spool
B. lcd /var/spool
C. cd /usr/bin /var/spool
D. lcd /usr/bin /var/spool
第2题：
Which of the following commands makes /bin/foo executable by everyone but writable only by its owner？（）
第3题：
A.chmod557/bin/foo
B.chmodo+rwx.a+rx/bin/foo
C.chown557/bin/foo
D.chmod755/bin/foo
第4题：
A system administrator issued the errpt command and had no results. The system administrator determined that error logging was turned off. Which of the following commands should be used to start logging system errors？（）
第5题：
Which of the following commands is used to delete an empty directory?（）
第6题：
A System p customer has installed components from the Linux ToolBox. By default， which of the following directories will contain the open source commands such as gzip， gunzip and zcat（）
第7题：
Which of the following commands will make a new directory?（）
第8题：
A.View
B.Table
C.Routine
D.Package
第9题：
Which of the following commands will be run at a command prompt to determine which WindowsOS is running on the computer?（）
第10题：
Which of the following database objects is considered executable using SQL?（）