Which Debian package system command will list all partially installed packages and suggest how to get them correctly installed？（）

To allow a regular user account to mount and unmount a filesystem （for instance， a cdrom or floppy）， which option need to be added to the corresponding line in /etc/fstab？（）

Which command （without options） would you use to display how much space is available on all mounted partitions？（）

What does the Filesystem Hierarchy Standard enable？ （）

Which of the following commands will change all CR-LF pairs in an imported text file， userlist.txt， to Linux standard LF characters and store it as newlist.txt？（）

You have just added a CD.ROM drive （/dev/hdd） to your system and have added it to yourfstab. Typically you can use which of the following commands to mount media in that drive to /mnt/cdrom？（）

What is the output when the following shell script executes？（）  cat<；<；foobar  Hello foobar  foobar

Which system administration command you can use to update Id.so.cache after the installation of new shared libraries？（）

What command with all options and/or parameter will send the signal USR1 to any executing process of  program apache2？（）

Many people like the vi text editor but the default bash command line editor recognizes emacs keystrokes. What command entered into a bash initialization file will have bash recognize vi keystrokes after login？（）