单项选择题
A. locate B. which C. find D. query E. whereis
Whichofthesecommandsallowsyoutousesharedlibrariesthatar...
单项选择题Which of these commands allows you to use shared libraries that are in /usr/local/lib？（）
A. export LD_PRELOAD=/usr/local/lib B. export LD_LIBRARY_PATH=/usr/local/lib C. Idconfig /usr/local/lib D. Idd/usr/local/lib
Usingvi，youwanttosavechangestothefilemyfilewith：w!，butv...
单项选择题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 myfile B. ：\ls-l myfile C. esc ：Is -I myfile D. ：？ls-l myfile
YouwishtokillaprocesswithaPIDof123.Selectthecommandwhic...
单项选择题You wish to kill a process with a PID of 123. Select the command which exiting.（）
A. kill-1 123 B. kill-9 123 C. kill-15 123 D. kill-17 123
