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A. cd @John B. cd #John C. cd &John D. cd ~John ¡¡ °ÑÒ»¸öÁ÷ÖÐËùÓÐ×Ö·ûת»»³É´óд×Ö·û£¬¿ÉÒÔʹÓÃÏÂÃæÄĸöÃüÁ
A. tr a-z A-Z B. tac a-z A-Z C. sed /a-z/A-Z D. sed --toupper ¡¡ A. in the kernel B. in /etc/inittab C. in /etc/runlevels D. using the rl command ¡¡ ÈçºÎ×°ÔØ(mount)ÉÏÔÚ /etc/fstab ÎļþÖж¨ÒåµÄËùÓÐÎļþϵͳ£¿
A. mount -a B. mount /mnt/* C. mount D. cat /etc/fstab | mount Èç¹ûʹÓÃlnÃüÁÉú³ÉÁËÒ»¸öÖ¸ÏòÎļþoldµÄ·ûºÅ
A. ²»¿ÉÄÜÔÙ·ÃÎÊ B. ÈÔÈ»¿ÉÒÔ·ÃÎÊ C. ÄÜ·ñ·ÃÎÊÈ¡¾öÓÚfile2µÄËùÓÐÕß D. ÄÜ·ñ·ÃÎÊÈ¡¾öÓÚfile2µÄȨÏÞ ¡¡ ÔÚext2fsÎļþϵͳÖУ¬È±Ê¡µÄΪrootÓû§±£Áô¶à´óµÄ¿Õ¼ä£¿
A. 3% B. 5% C. 10% D. 15% ¡¡ ÏÂÃæÄĸöÃüÁîÓÃÀ´ÏÔʾϵͳÖи÷¸ö·ÖÇøÖÐinodeµÄʹÓÃÇé¿ö£¿
A. df -i B. df -H C. free -b D. du -a -c / ¡¡ ÔÚ´ó¶àÊýLinux·¢Ðа汾ÖУ¬Í¼ÐÎ
A. 1 B. 2 C. 3 D. 5 ¡¡ ÈçºÎÔÚϵͳÎĵµÖÐÕÒµ½¹ØÓÚprintÕâ¸öµ¥´ÊµÄËùÓÐ˵Ã÷£¿
A. man print B. which print C. locate print D. apropos print ¡¡ ÃüÁî man 5 passwd º¬ÒåÊÇ£¿
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A. find \* file B. wc -l * D. grep \* file ¡¡ ÔÚpsÃüÁîʲô²ÎÊýÊÇÓÃÀ´ÏÔʾËùÓÐÓû§µÄ½ø³ÌµÄ£¿
A. a B. b C. u D. x ¡¡ ÏÔʾ¶þ½øÖÆÎļþµÄÃüÁîÊÇ£¿
A. od B. vil C. view D. binview ¡¡ ÈçºÎÏÔʾLinuxϵͳÖÐ×¢²áµÄÓû§Êý£¨°üº¬ÏµÍ³Óû§£©£¿
A. account -l B. nl /etc/passwd |head C. wc --users /etc/passwd D. wc --lines /etc/passwd ¡¡ ÔÚÒ»ÐнáÊøÎ»ÖüÓÉÏʲô·ûºÅ£¬±íʾδ½áÊø£¬ÏÂÒ»ÐмÌÐø£¿
A. / B. \ C. ; D. | ¡¡ ÃüÁî kill 9 µÄº¬ÒåÊÇ£º
A. kills the process whose PID is 9. B. kills all processes belonging to UID 9. C. sends SIGKILL to the process whose PID is 9. D. sends SIGTERM to the process whose PID IS 9. ¡¡ ÈçºÎɾ³ýÒ»¸ö·Ç¿Õ×ÓĿ¼/tmp£¿
A. del /tmp/* B. rm -rf /tmp C. rm -Ra /tmp/* D. rm -rf /tmp/* ¡¡ ʹÓÃʲôÃüÁî¿ÉÒÔÔÚ½ñÌìÎçÒ¹ÔËÐÐÃüÁî cmd1 £¿
A. at midnight cmd1 B. cron -at "00:00" cmd1 C. batch -t "00:00" ¡¡ ÄãµÄϵͳʹÓÃÔöÁ¿±¸·Ý²ßÂÔ£¬µ±ÐèÒª»Ö¸´ÏµÍ³Ê±£¬ÄãÐèÒª°´Ê²Ã´Ë³Ðò»Ö¸´±¸·ÝÊý¾Ý£¿
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A. /etc/bashrc B. /etc/profile C. ~/.bash_profile D. /etc/skel/.bashrc ¡¡ LinuxϵͳÖУ¬Ò»°ã°ÑÃüÁî ls ¶¨ÒåΪ ls --color µÄ±ðÃû£¬ÒÔ±ãÒÔ²»Í¬ÑÕÉ«À´±êʶ²»Í¬ÀàÐ͵ÄÎļþ¡£µ«ÊÇ£¬ÈçºÎÄܹ»Ê¹ÓÃÔÏȵÄlsÃüÁ
A. \ls B. ;ls C. ls $$ D. ls --noalias ¡¡ ÔÚLinuxϵͳÖеĽű¾ÎļþÒ»°ãÒÔʲô¿ªÍ·£¿
A. $/bin/sh B. #!/bin/sh C. use /bin/sh D. set shell=/bin/sh ¡¡ ÏÂÃæÄÄÖÖд·¨±íʾÈç¹ûcmd1³É¹¦Ö´ÐУ¬ÔòÖ´ÐÐcmd2ÃüÁ
A. cmd1&&cmd2 B. cmd1|cmd2 C. cmd1;cmd2 D. cmd1||cmd2 ¡¡ ÔÚÄĸöÎļþÖж¨ÒåÍø¿¨µÄI/OµØÖ·£¿ A. cat /proc/modules B. cat /proc/devices C. cat /proc/ioports D. cat /io/dma |


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