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linux 运维shell习题

發布時間：2025/4/16 linux 21 豆豆

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1. linux如何掛在windows下的共享目錄？

  #匿名共享  [root@node2?~]#?mount.cifs?//192.168.174.1/isos?/media/   [root@node2?media]#?ls  CentOS-6.8-x86_64-bin-DVD1.iso?????????????????????????????ubuntu-16.04.2-desktop-amd64.iso CentOS-7-x86_64-Everything-1511.iso????????????????????????win_7激活工具.exe coreos_production_iso_image.iso????????????????????????????系統映像WindowsServer2003SP2EnterpriseEdition.iso SW_DVD5_Win_Pro_7w_SP1_64BIT_ChnSimp_-2_MLF_X17-59526.iso #認證共享  [root@node2?/]#?umount?/media/   [root@node2?/]#?cd?/media/   [root@node2?media]#?ls   [root@node2?media]#?cd?..   [root@node2?/]#?mount.cifs?//192.168.174.1/isos?/media/?-o?username=ftp1   Password?for?ftp1@//192.168.174.1/isos:??*********   [root@node2?/]#?cd?/media/   [root@node2?media]#?ls  CentOS-6.8-x86_64-bin-DVD1.iso?????????????????????????????ubuntu-16.04.2-desktop-amd64.iso CentOS-7-x86_64-Everything-1511.iso????????????????????????win_7激活工具.exe coreos_production_iso_image.iso????????????????????????????系統映像WindowsServer2003SP2EnterpriseEdition.iso SW_DVD5_Win_Pro_7w_SP1_64BIT_ChnSimp_-2_MLF_X17-59526.iso  [root@node2?media]#   

2.使用for循環在/oldboy目錄下通過隨機小寫10個字母加固定字符串oldboy批量創建10個html文件，名稱例如為：

   [root@localhost?~]#?sh?create_html.sh?   [root@localhost?~]#?ls?/oldboy/  bdjcfhebff_oldboy.html??dffgcabcci_oldboy.html??fgjeaafbaf_oldboy.html??iadfffigib_oldboy.html bjggfdaafa_oldboy.html??dfhbffaaaa_oldboy.html??gfbabcadjc_oldboy.html cbdeaacfdd_oldboy.html??efeaffhgab_oldboy.html??hbcdjicacg_oldboy.html  [root@localhost?~]#?cat?create_html.sh?  #!/bin/bash  for?i?in?{1..10}  do  ????name=`echo?$RANDOM|md5sum|cut?-c?1-10?|tr?'[0-9]'?'[a-z]'`   ????touch?/oldboy/"$name"'_oldboy.html'  done  [root@localhost?~]#   

3.請使用兩種方法將上題的oldboy改成oldgirl并將html該為HTML。

  #方法一  [root@localhost?~]#?sh?modify_html.sh?   [root@localhost?~]#?ll?/oldboy/  total?0 -rw-r--r--?1?root?root?0?Jul?27?19:47?bdjcfhebff_oldgirl.HTML -rw-r--r--?1?root?root?0?Jul?27?19:47?bjggfdaafa_oldgirl.HTML -rw-r--r--?1?root?root?0?Jul?27?19:47?cbdeaacfdd_oldgirl.HTML -rw-r--r--?1?root?root?0?Jul?27?19:47?dffgcabcci_oldgirl.HTML -rw-r--r--?1?root?root?0?Jul?27?19:47?dfhbffaaaa_oldgirl.HTML -rw-r--r--?1?root?root?0?Jul?27?19:47?efeaffhgab_oldgirl.HTML -rw-r--r--?1?root?root?0?Jul?27?19:47?fgjeaafbaf_oldgirl.HTML -rw-r--r--?1?root?root?0?Jul?27?19:47?gfbabcadjc_oldgirl.HTML -rw-r--r--?1?root?root?0?Jul?27?19:47?hbcdjicacg_oldgirl.HTML -rw-r--r--?1?root?root?0?Jul?27?19:47?iadfffigib_oldgirl.HTML  [root@localhost?~]#?cat?modify_html.sh?  #!/bin/bash  cd?/oldboy/   for?name?in?`ls`  do  ????x=`echo?$name?|sed?'s/html$/HTML/g'`   ????y=`echo?$x?|?sed?'s/boy/girl/g'`   ????mv?"$name"?"$y"  done  [root@localhost?~]#   #方法二  [root@localhost?~]#?cat?modify_html_2.sh  #!bin/bash  cd?/oldboy/   rename?'html'?'HTML'?*   rename?'boy'??'girl'?*   [root@localhost?~]#   

4.批量創建10個賬號oldboy01-oldboy10 密碼為隨機8個字符串。

   [root@localhost?~]#?sh?useradd_batch.sh   Changing?password?for?user?oldboy01.   passwd:?all?authentication?tokens?updated?successfully.   Changing?password?for?user?oldboy02.   passwd:?all?authentication?tokens?updated?successfully.   Changing?password?for?user?oldboy03.   passwd:?all?authentication?tokens?updated?successfully.   Changing?password?for?user?oldboy04.   passwd:?all?authentication?tokens?updated?successfully.   Changing?password?for?user?oldboy05.   passwd:?all?authentication?tokens?updated?successfully.   Changing?password?for?user?oldboy06.   passwd:?all?authentication?tokens?updated?successfully.   Changing?password?for?user?oldboy07.   passwd:?all?authentication?tokens?updated?successfully.   Changing?password?for?user?oldboy08.   passwd:?all?authentication?tokens?updated?successfully.   Changing?password?for?user?oldboy09.   passwd:?all?authentication?tokens?updated?successfully.   Changing?password?for?user?oldboy10.   passwd:?all?authentication?tokens?updated?successfully.   [root@localhost?~]#?cat?useradd_batch.sh?  #!/bin/bash  for?i?in?{01..10}  do  ????PassWord=`echo?$RANDOM|md5sum|cut?-c?1-8`   ????UserName='oldboy'"$i"   ????useradd?-M?$UserName   ????echo?$PassWord?|passwd?--stdin?$UserName  done  [root@localhost?~]#?grep?'oldboy'?/etc/passwd   oldboy01:x:1000:1000::/home/oldboy01:/bin/bash   oldboy02:x:1001:1001::/home/oldboy02:/bin/bash   oldboy03:x:1002:1002::/home/oldboy03:/bin/bash   oldboy04:x:1003:1003::/home/oldboy04:/bin/bash   oldboy05:x:1004:1004::/home/oldboy05:/bin/bash   oldboy06:x:1005:1005::/home/oldboy06:/bin/bash   oldboy07:x:1006:1006::/home/oldboy07:/bin/bash   oldboy08:x:1007:1007::/home/oldboy08:/bin/bash   oldboy09:x:1008:1008::/home/oldboy09:/bin/bash   oldboy10:x:1009:1009::/home/oldboy10:/bin/bash   [root@localhost?~]#   

5.寫一個腳本，判斷192.168.174.0/24 有多少在線IP？

   [root@localhost?~]#?sh?ping_batch_2.sh  UP:?4?DOWN:?250  #單進程的ping耗時太長 #本來想用命名管道的，但是沒有成功 #借助一個文件來實現并發的ping，但是這個文件沒有加鎖，這樣不安全  [root@localhost?~]#?cat?ping_batch_2.sh??  #!/bin/bash ip=192.168.174 UP=0 DOWN=0  for?i?in?{1..254}  do  ????IP="$ip"'.'"$i"   ????ping?-c?3?$IP?>/dev/null?2>&1?&&?echo?"1?$IP"?>>?.npipe_ping?||?echo?"0?$IP"?>>?.npipe_ping?&  done wait  cat?.npipe_ping?|awk?'{host[$1]++;}?END{print?"UP:?"host[1],"DOWN:?"host[0];}'   rm?-f?.npipe_ping   [root@localhost?~]#   

6.請用兩種方法實現for循環打印下面這句話字母數不大于 6的單詞。

1	I?am?oldboy?teacher?welcome?to?oldboy?training?class

   [root@localhost?~]#?x="I?am?oldboy?teacher?welcome?to?oldboy?training?class"   [root@localhost?~]#?echo?$x?|?awk?'END{for(i=1;i<=NF;i++){if(length($i)<=6){print?$i}}}'  I am oldboy to oldboy class  [root@localhost?~]#?for((i=1;;i++));do?split=`echo?$x|cut?-d"?"?-f$i`;if?[?"$split"?==?""?];then?break;fi;?echo?$split;done  I am oldboy teacher welcome to oldboy training class  

7.提取文件test.log中FAILD與SUCCESSFUL的字符但不包括DONE的行，然后以:為隔符，提取第三列

   [root@localhost?~]#?cat?text.log?  FAILD:SUCCESSFUL:DONE:CRITICAL FAILD:SUCCESSFUL:NO:GOOD FAILD:NO:DO:QINGYUN SUCCESSFUL:DONE:CRITICAL::CRITICAL   [root@localhost?~]#?cat?text.log?|grep?-E?"(SUCCESSFUL|FAILD)"|grep?-v?"DONE"?|cut?-d":"?-f3  NO DO  [root@localhost?~]#?cat?text.log?|grep?-E?"(SUCCESSFUL|FAILD)"|grep?-v?"DONE"?|awk?-F':'?'{print?$3}'  NO DO  [root@localhost?~]#   

8.mysql多實例啟動腳本

   [root@localhost?~]#?cat?mysql_muti.sh  #!/bin/bash PORT=(3306?3307) user=root  passwd=12345678   function?start()?{   ??for?port?in?${PORT[*]}   ??do   ????mysqld_safe?--defaults-file="/data/$port/conf/my.cnf"?&>/dev/null?&   ????[?$??-eq?0?]?&&?{?echo?-e?"mysql:$port?Start?\033[32m?Success...?\033[0m";?}?||?echo?-e??"mysql:$port?Start?\033[33m?Failed...?\033[0m"   ??done  }  function?stop()?{   ??for?port?in?${PORT[*]}   ??do   ????mysqladmin?-u$user?-p$passwd?-S?"/data/$port/mysql.sock"?shutdown?&>/dev/null?  ????[?$??-eq?0?]?&&?echo??-e?"mysql:$port?Stop?\033[32m?Success...?\033[0m"?||?echo?-e??"mysql:$port?Stop?\033[33m?Failed...\033[0m"   ??done  }  function?restart()?{   ??stop?   ??sleep?3   ??start?  }  case?$1?in  start)  ????start  ;; stop)  ????stop  ;; restart)  ????restart  ;; *)  ????full_path=`cd?$(?dirname?$0)?&&??pwd`   ????echo?"Use:?sh?$full_path/`basename?$0`?start|stop|restart"  ;; esac  

9.shell 簡單跳板機

   [root@localhost?~]#?cat?signal_trapper.sh?  #!/bin/bash  function?trapper()  {  ??trap?''?INT?EXIT?TSTP?TERM?HUP?  }  function?describe()  {  ??echo?'   ????1)?k8s_2   ????2)?exit  '  ??read?-p?'??Choice:?'?C   ??return?$C  }  function?action()  {  ??case?$1?in   ??1)   ??ssh?`whoami`@'192.168.174.131'   ??;;   ??2)   ???exit?  ??;;   ??*)   ??clear   ??;;   ??esac  }  function?main()?{   while?true  do  ?????  ????trapper   ????describe   ????action?$?  done }  if?[?$UID?-ne?0?]  then main fi  

10.統計最常用的命令

1	[root@localhost?~]#??history?\|?awk?'{CMD[$2]++;count++;}?END?{?for(a?in?CMD)?{print?CMD[a]?"?"?CMD[a]/count*100?"%?"?a}}'?\|grep?-v?"./"\|column?-c3?-s?"?"?-t\|sort?-nr?\|nl\|head?-10

本文轉自 chaunceyjiang? 51CTO博客，原文鏈接：http://blog.51cto.com/cqwujiang/1952097，如需轉載請自行聯系原作者《新程序員》：云原生和全面數字化實踐50位技術專家共同創作，文字、視頻、音頻交互閱讀

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