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2004年考Linux必备知识
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　　2. If you set the um
have?
 ask to 022, by default what

permissions will your files

　　a. 0220                                                                
　　b. 0888                                                                
　　c. 0644                                                                
　　d. 0755                                                                

　　3. Which command line will mount
in /etc/fstab?
 all available file systems which are listed

　　a. mount -a                                                        
　　b. mount /mnt/*                                                
　　c. /etc/fstab d. mou
 nt e. cat /etc/fstab 　 moun
 t

　　4. Which command wil
partitions?
 l give you the total amount

of free kilobytes on all disk

　　a. du                                                                    

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