当前分类： LX0-101
问题：单选题Using vi， you want to save changes to the file myfile with ：w!， but vi complains it cannot write to the file. Therefore， you want to check the write permissions on the file. To do this without leaving vi， you type：（）A ：!ls-I myfileB ：/ls-l myfileC e...
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问题：单选题Which of these commands allows you to use shared libraries that are in /usr/local/lib？（）A export LD_PRELOAD=/usr/local/libB export LD_LIBRARY_PATH=/usr/local/libC Idconfig /usr/local/libD Idd/usr/local/lib...
问题：单选题You ran out of space and added a eighth disk to your SCSI-1 system. When you try to start， the system no longer boots. What is most likely the cause of this problem？（）A SCSI-1 supports only 8 devices including the adaptor.B SCSI-1 supports only 6 dis...
问题：单选题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？（）A history-pviB alias emacs=viC HISTCM...
问题：填空题What command with all options and/or parameter will send the signal USR1 to any executing process of program apache2？（）...
问题：单选题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？（）A tr ’/r/n’ userlist.txt newlist.txtB tr -c ’/n/r’ newlist.txt userlist.txtC tr -...
问题：单选题What information is displayed by the command cat/proc/dma？（）A whether DMA is enabledB which DMA channels are in useC which DMA mode is in useD general information about DMA on the machine...
问题：单选题You wish to kill a process with a PID of 123. Select the command which exiting.（）A kill-1 123B kill-9 123C kill-15 123D kill-17 123...
问题：单选题Which system administration command you can use to update Id.so.cache after the installation of new shared libraries？（）A IdconfigB IddC libpathD newlibs...
问题：单选题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？（）A nouidchkB alluserC userD auto...
问题：单选题You are looking for an executable file foo. Select the command that would search forfoo within directories set in the shell variable， PATH.（）A locateB whichC findD queryE whereis...
问题：单选题What is the difference between thE.remove and thE.purge action with the dpkg command？（）A -remove removes the program， -purge also removes the config filesB -remove only removes the program， -purge only removes the config filesC -remove removes a pac...
问题：单选题The command echo $! will produce what output？（）A the process id of last background commandB the exit status of the last commandC the exit status of the last background commandD the process id of the current shellE the name of the command being exe...
问题：单选题Given the following output： prompt myapp [1]+ Stopped myapp prompt Which of the following commands will resume executing the stopped process while allowing the user to continue to type commands at the command prompt？（）A bg myappB continue myapp...
问题：填空题Which program finds only files that are in your PATH？（）...
问题：多选题What does the Filesystem Hierarchy Standard enable？ （）Asoftware to predict the location of installed files and directoriesBsoftware to predict the ownership and access rights to files and directoriesCusers to predict the location of installed files and...
