restart the Apache web server. # # To make Apache start automatically at boot, make this # file executable: chmod 755 /etc/rc.d/rc.httpd # case "$1" in 'start') /usr/sbin/apachectl start ;; 'stop') /usr/sbin/apachectl stop ;; 'restart') /usr/sbin/apachectl restart ;; *) echo "usage $0 start|stop|restart" ;; esac ²Î¿¼´ð°¸£º £¨1£©³ÌÐò×¢ÊÍ #!/bin/sh ¶¨ÒåʵÓõÄshell # # /etc/rc.d/rc.httpd ×¢ÊÍÐУ¬·²ÊÇÒÔÐǺſªÊ¼µÄÐоùΪעÊÍÐС£ # # Start/stop/restart the Apache web server. # # To make Apache start automatically at boot, make this
# file executable: chmod 755 /etc/rc.d/rc.httpd # case "$1" in #case½á¹¹¿ªÊ¼£¬Åжϡ°Î»ÖòÎÊý¡±¾ö¶¨Ö´ÐеIJÙ×÷¡£±¾³ÌÐòЯ´øÒ»¸ö¡°Î»ÖòÎÊý¡±£¬¼´$1 'start') #ÈôλÖòÎÊýΪstart /usr/sbin/apachectl start ;; #Æô¶¯httpd½ø³Ì 'stop') #ÈôλÖòÎÊýΪstop /usr/sbin/apachectl stop ;; #¹Ø±Õhttpd½ø³Ì 'restart') #ÈôλÖòÎÊýΪstop /usr/sbin/apachectl restart ;; #ÖØÐÂÆô¶¯httpd½ø³Ì *) #ÈôλÖòÎÊý²»ÊÇstart¡¢stop»òrestartʱ echo "usage $0 start|stop|restart" ;; #ÏÔʾÃüÁîÌáʾÐÅÏ¢£º³ÌÐòµÄµ÷Ó÷½·¨ esac #case½á¹¹½áÊø £¨2£©³ÌÐòµÄ¹¦ÄÜÊÇÆô¶¯£¬Í£Ö¹»òÖØÐÂÆô¶¯httpd½ø³Ì £¨3£©³ÌÐòµÄµ÷Ó÷½Ê½ÓÐÈýÖÖ£ºÆô¶¯£¬Í£Ö¹ºÍÖØÐÂÆô¶¯¡£ 3£®Éè¼ÆÒ»¸öshell³ÌÐò£¬Ìí¼ÓÒ»¸öÐÂ×éΪclass1£¬È»ºóÌí¼ÓÊôÓÚÕâ¸ö×éµÄ30¸öÓû§£¬Óû§ÃûµÄÐÎʽΪstdxx£¬ÆäÖÐxx´Ó01µ½30¡£ ²Î¿¼´ð°¸£º #!/bin/sh i=1 groupadd class1 while [ $i -le 30 ] do if [ $i -le 9 ] ;then USERNAME=stu0${i} else USERNAME=stu${i} fi useradd $USERNAME mkdir /home/$USERNAME chown -R $USERNAME /home/$USERNAME chgrp -R class1 /home/$USERNAME i=$(($i+1)) done
4£®±àдshell³ÌÐò£¬ÊµÏÖ×Ô¶¯É¾³ý50¸öÕ˺ŵŦÄÜ¡£Õ˺ÅÃûΪstud1ÖÁstud50¡£ ²Î¿¼³ÌÐò£º #!/bin/sh i=1 while [ $i -le 50 ] do userdel -r stud${i} i=$(($i+1 )) done 5£®Ä³ÏµÍ³¹ÜÀíÔ±ÐèÿÌì×öÒ»¶¨µÄÖظ´¹¤×÷£¬Çë°´ÕÕÏÂÁÐÒªÇ󣬱àÖÆÒ»¸ö½â¾ö·½°¸£º £¨1£©ÔÚÏÂÎç4 :50ɾ³ý/abcĿ¼ÏµÄÈ«²¿×ÓĿ¼ºÍÈ«²¿Îļþ£» £¨2£©´ÓÔç8:00¡«ÏÂÎç6:00ÿСʱ¶ÁÈ¡/xyzĿ¼ÏÂx1ÎļþÖÐÿÐеÚÒ»¸öÓòµÄÈ«²¿Êý¾Ý¼ÓÈëµ½/backupĿ¼ÏµÄbak01.txtÎļþÄÚ£» £¨3£©Ã¿·êÐÇÆÚÒ»ÏÂÎç5:50½«/dataĿ¼ÏµÄËùÓÐĿ¼ºÍÎļþ¹éµµ²¢Ñ¹ËõΪÎļþ£ºbackup.tar.gz£» £¨4£©ÔÚÏÂÎç5:55½«IDE½Ó¿ÚµÄCD-ROMжÔØ£¨¼ÙÉ裺CD-ROMµÄÉ豸ÃûΪhdc£©£» £¨5£©ÔÚÔ糿8:00Ç°¿ª»úºóÆô¶¯¡£ ²Î¿¼´ð°¸: ½â¾ö·½°¸£º £¨1£©ÓÃvi´´½¨±à¼Ò»¸öÃûΪprgxµÄcrontabÎļþ£» £¨2£©prgxÎļþµÄÄÚÈÝ£º 50 16 * * * rm -r /abc/* 0 8-18/1 * * * cut -f1 /xyz/x1 >;>; /backup/bak01.txt 50 17 * * * tar zcvf backup.tar.gz /data 55 17 * * * umount /dev/hdc £¨3£©Óɳ¬¼¶Óû§µÇ¼£¬ÓÃcrontabÖ´ÐÐ prgxÎļþÖеÄÄÚÈÝ£º root@xxx:#crontab prgx£»ÔÚÿÈÕÔ糿8:00֮ǰ¿ª»úºó¼´¿É×Ô¶¯Æô¶¯crontab¡£ 6£®Éè¼ÆÒ»¸öshell³ÌÐò£¬ÔÚÿÔµÚÒ»Ì챸·Ý²¢Ñ¹Ëõ/etcĿ¼µÄËùÓÐÄÚÈÝ£¬´æ·ÅÔÚ/root/bakĿ¼ÀÇÒÎļþÃûΪÈçÏÂÐÎʽyymmdd_etc£¬yyΪÄ꣬mmΪÔ£¬ddΪÈÕ¡£Shell³ÌÐòfileback´æ·ÅÔÚ/usr/binĿ¼Ï¡£ ²Î¿¼´ð°¸£º £¨1£©±àдshell³ÌÐòfileback£º #!/bin/sh DIRNAME=`ls /root | grep bak` if [ -z "$DIRNAME" ] ; then mkdir /root/bak cd /root/bak fi YY=`date +%y` MM=`date +%m` DD=`date +%d` BACKETC=$YY$MM$DD_etc.tar.gz tar zcvf $BACKETC /etc echo "fileback finished!" £¨2£©±àдÈÎÎñ¶¨Ê±Æ÷£º echo "0 0 1 * * /bin/sh /usr/bin/fileback" >; /root/etcbakcron crontab /root/etcbakcron »òʹÓÃcrontab -e ÃüÁîÌí¼Ó¶¨Ê±ÈÎÎñ£º 0 1 * * * /bin/sh /usr/bin/fileback 7£®ÓÐÒ»ÆÕͨÓû§ÏëÔÚÿÖÜÈÕÁ賿ÁãµãÁã·Ö¶¨ÆÚ±¸·Ý/user/backupµ½/tmpĿ¼Ï£¬¸ÃÓû§Ó¦ÈçºÎ×ö£¿ ²Î¿¼´ð°¸£º£¨1£©µÚÒ»ÖÖ·½·¨£º Óû§Ó¦Ê¹ÓÃcrontab ¨Ce ÃüÁî´´½¨crontabÎļþ¡£¸ñʽÈçÏ£º 0 0 * * sun cp ¨Cr /user/backup /tmp £¨2£©µÚ¶þÖÖ·½·¨£º Óû§ÏÈÔÚ×Ô¼ºÄ¿Â¼ÏÂн¨Îļþfile£¬ÎļþÄÚÈÝÈçÏ£º 0 * * sun cp ¨Cr /user/backup /tmp È»ºóÖ´ÐÐ crontab file ʹÉúЧ¡£ 8.Éè¼ÆÒ»¸öShell³ÌÐò£¬ÔÚ/userdataĿ¼Ï½¨Á¢50¸öĿ¼£¬¼´user1¡«user50£¬²¢ÉèÖÃÿ¸öĿ¼µÄȨÏÞ£¬ÆäÖÐÆäËûÓû§µÄȨÏÞΪ£º¶Á£»ÎļþËùÓÐÕßµÄȨÏÞΪ£º¶Á¡¢Ð´¡¢Ö´ÐУ»ÎļþËùÓÐÕßËùÔÚ×éµÄȨÏÞΪ£º¶Á¡¢Ö´ÐС£ ²Î¿¼´ð°¸: ½¨Á¢³ÌÐò Pro16ÈçÏ£º #!/bin/sh i=1 while [ i -le 50 ] do if [ -d /userdata ];then mkdir -p /userdata/user$i chmod 754 /userdata/user$i echo "user$i" let "i = i + 1" £¨»òi=$£¨£¨$i£«1£©£© else mkdir /userdata mkdir -p /userdata/user$i chmod 754 /userdata/user$i echo "user$i" let "i = i + 1" £¨»òi=$£¨£¨$i£«1£©£© fi done
Îå¡¢¶àÑ¡Ìâ 1£®¹ØÓÚÓ²Á´½ÓµÄÃèÊöÕýÈ·µÄ£¨BE£©¡£ A ¿çÎļþϵͳ B²»¿ÉÒÔ¿çÎļþϵͳ D¿ÉÒÔ×öĿ¼µÄÁ¬½Ó C ΪÁ´½ÓÎļþ´´½¨ÐµÄi½Úµã EÁ´½ÓÎļþµÄi½Úµãͬ±»Á´½ÓÎļþµÄi½Úµã 2£®ÔÚÍøÕ¾·¢²¼Óû§wangµÄ¸öÈËÍøҳʱ£¬ÐèÒª´´½¨Óû§ÍøҳĿ¼£¬¼Ù¶¨Óû§ÍøҳĿ¼É趨Ϊweb £¨Óû§Ä¿Â¼ÔÚ/homeĿ¼Ï£©£¬ÈçÏÂÃèÊöÕýÈ·µÄÊÇ£¨BCE£© A ´æ·ÅÓû§ÍøÒ³µÄ¾ø¶Ô·¾¶/wang/web B´æ·ÅÓû§ÍøÒ³µÄĿ¼¡«wang/ C ´æ·ÅÓû§ÍøÒ³µÄ¾ø¶Ô·¾¶/home/wang/web D´æ·ÅÓû§ÍøÒ³µÄ¾ø¶Ô·¾¶/home/web E ÔÚ±¾»ú·ÃÎÊÓû§wangµÄ¸öÈËÍøÒ³µÄURLµØÖ·http://localhost/¡«wang/ 3£®ÔÚһ̨WWW·þÎñÆ÷ÉϽ«¶Ë¿ÚºÅÉ趨Ϊ8000£¬Ä¬ÈϵÄÍøÒ³Îļþindex.html£¬·þÎñÆ÷ÍøÒ³µÄ¸ùĿ¼/www¡£ÔÚ±¾»ú·ÃÎÊ·þÎñÆ÷ʱ£¬ÕýÈ·µÄÓ÷¨ÊÇ£¨BDE£© A ä¯ÀÀÆ÷·ÃÎʸ÷þÎñÆ÷µÄURLµØÖ·http://localhost/ B ä¯ÀÀÆ÷·ÃÎʸ÷þÎñÆ÷µÄURLµØÖ·http://localhost:8000/ C ä¯ÀÀÆ÷·ÃÎʸ÷þÎñÆ÷µÄÓû§liÍøÒ³URLµØÖ·http://localhost/~li D ä¯ÀÀÆ÷·ÃÎʸ÷þÎñÆ÷µÄÓû§liÍøÒ³URLµØÖ·http://localhost:8000/~li E ä¯ÀÀÆ÷·ÃÎʸ÷þÎñÆ÷µÄURLµØÖ·localhost:8000/ 4£®ÔÚshell±à³Ì(www.cppentry.com)ÖйØÓÚ$2µÄÃèÊöÕýÈ·µÄÊÇ£¨CE£© A ³ÌÐòºóЯ´øÁËÁ½¸öλÖòÎÊý B ºêÌæ»» C ³ÌÐòºóÃæЯ´øµÄµÚ¶þ¸öλÖòÎÊý D Я´øλÖòÎÊýµÄ¸öÊý E ÓÃ$2ÒýÓõڶþ¸öλÖòÎÊý 5£®Ä³ÎļþµÄȨÏÞÊÇ - r w x r - - r- -£¬ÏÂÃæÃèÊöÕýÈ·µÄÊÇ(CD) A ÎļþµÄȨÏÞÖµÊÇ755 B ÎļþµÄËùÓÐÕ߶ÔÎļþÖ»ÓжÁȨ ÏÞ C ÎļþµÄȨÏÞÖµÊÇ 744 D ÆäËûÓû§¶ÔÎļþÖ»ÓжÁȨÏÞ Eͬ×éÓû§¶ÔÎļþÖ»ÓÐдȨÏÞ 6£®¹ØÓÚOpenSSHµÄ×÷ÓõÄÃèÊöÕýÈ·µÄÊÇ£¨ACE£© A ¿ª·ÅÔ´´úÂëµÄ°²È«¼ÓÃܳÌÐò B OpenSSH³£ÓÃÓÚΪhttpÐÒé¼ÓÃÜ C OpenSSHÓÃÓÚÌá¸ßÔ¶³ÌµÇ¼·ÃÎʵݲȫÐÔ D ËüºÍtelnetʵÓÃͬÑùµÄ¶Ë¿ÚºÅ E OpenSSHÊÇÃâ·ÑÏÂÔصÄÓ¦³ÌÐò 7£®¹ØÓÚNFS·þÎñÆ÷ÃèÊöÕýÈ·µÄÊÇ£¨BC£© A ÍøÂçÖÐʵÏÖWindowsϵͳ֮¼äÎļþϵͳ¹²ÏíµÄÓ¦ÓÃÈí¼þ B ÍøÂçÖÐʵÏÖLinuxϵͳ֮¼äÎļþϵͳ¹²ÏíµÄÓ¦ÓÃÈí¼þ C ÍøÂçÖÐʵÏÖUnixϵͳ֮¼äÎļþϵͳ¹²ÏíµÄÓ¦ÓÃÈí¼þ D ÍøÂçÖÐʵÏÖWindowsϵͳºÍUnixÖ®¼äÎļþϵͳ¹²ÏíµÄÓ¦ÓÃÈí¼þ E ÍøÂçÖÐʵÏÖWindowsϵͳºÍLinuxÖ®¼äÎļþϵͳ¹²ÏíµÄÓ¦ÓÃÈí¼þ 8£®¹ØÓÚsedÃèÊöÕýÈ·µÄÊÇ£¨ABD£© A sed ÊÇLinuxϵͳÖеÄÁ÷±à¼Æ÷ B sed ÊÇUNIXϵͳÖеÄÁ÷±à¼Æ÷ C sed ÍøÂçÎļþϵͳµÄÀàÐÍ
D ÀûÓùܵÀ¶Ô±ê×¼ÊäÈë/±ê×¼ÊäÈëµÄÊý¾Ý½øÐб༺Í×éºÏ E sedÊÇNFSµÄÓ¦ÓóÌÐò 9£®¹ØÓÚÏÞÖÆ´ÅÅÌÏ޶ÃèÊöÕýÈ·µÄÊÇ£¨ABD£© A ʹÓÃedquota¿ÉÒÔ¼à¿ØϵͳËùÓÐÓû§Ê¹ÓõĴÅÅ̿ռ䣬²¢ÔÚ½Ó½ü¼«ÏÞʱÌáʾÓû§ B Óû§×éµÄ´ÅÅÌÏÞ¶îÊÇÓû§×éÄÚËùÓÐÓû§ÓèÉè´ÅÅÌ¿Õ¼ä×ÜºÍ C µ¥¸öÓû§µÄ´ÅÅÌÏÞ¶î¾ÍÊǸÃÓû§ËùÔÚÓû§×éÄÚËùÓдÅÅÌÏÞ¶îµÄ×ܺÏ& |