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средства_программирования_shell [2022/06/30 14:25]
val [Web сервер на shell] 		средства_программирования_shell [2024/03/13 08:30]
val [Целочисленный цикл (поиск хостов в подсети)]
Line 11: Line 11:
  
 ===== Проверка синтаксиса ===== ===== Проверка синтаксиса =====
 +
 +  * [[https://​www.shellcheck.net/​wiki/​]]
 +
 <​code>​ <​code>​
 # apt install shellcheck # apt install shellcheck
  
-$ shellcheck ​script.sh+$ shellcheck ​webd/webd
 </​code>​ </​code>​
 ===== Переменные окружения ===== ===== Переменные окружения =====
Line 76: Line 79:
  
 ==== Целочисленный цикл (поиск хостов в подсети) ==== ==== Целочисленный цикл (поиск хостов в подсети) ====
 +
 +  * [[Утилита nmap#Ping диапазона адресов с verbose и debug]]
 +
 <​code>​ <​code>​
 $ cat test_ping.sh $ cat test_ping.sh
Line 81: Line 87:
 #!/bin/sh #!/bin/sh
  
-test -z $1 && exit 1+#test -z $1 && exit 1 
 +#[ "​$1"​ ] || { echo Example: ./​test_ping.sh 10.5.11; exit 1; }
  
 i=1 i=1
Line 87: Line 94:
 do do
   test $i = 50 && continue   test $i = 50 && continue
-  ping -c 1 -W 1 $1.$i > /dev/null 2>&1 && echo $1.$i+  ping -c 1 -W 1 $1.$i > /dev/null 2>&1 && echo $1.$i || echo No $i
   i=$(($i + 1))   i=$(($i + 1))
 done done
Line 377: Line 384:
  
 ==== Web сервер на shell ==== ==== Web сервер на shell ====
 +
 +  * [[Сервис HTTP]]
 +  * [[Переменные окружения#​Чтение значений переменных окружения]]
  
 <​code>​ <​code>​
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 #!/bin/bash #!/bin/bash
 base=/​var/​www base=/​var/​www
-log=/​var/​log/​webd.log+#log=/​var/​log/​webd.log
  
 read request read request
 +##echo "​$request"​ >> $log       # for educational demonstration
 +
 +filename="​${request#​GET }"
 +filename="​${filename% HTTP/​*}"​
 +
 +test $filename = "/"​ && filename="/​index.html"​
 +
 +filename="​$base$filename"​
  
 while : while :
 do do
-  read header+  read -r header 
 +##  echo "​$header"​ >> $log       # for educational demonstration
   [ "​$header"​ == $'​\r'​ ] && break;   [ "​$header"​ == $'​\r'​ ] && break;
 +##  [ "​$header"​ == $''​ ] && break; ​   # for STDIN/​STDOUT educational demonstration
 done done
- 
-url="​${request#​GET }" 
-url="​${url% HTTP/​*}"​ 
- 
-test $url = "/"​ && url="/​index.html"​ 
- 
-filename="​$base$url"​ 
  
 if [ -e "​$filename"​ ] if [ -e "​$filename"​ ]
 then then
-  ​echo `date` OK $filename >> $log+#  ​echo `date` OK $filename ​on `hostname` ​>> $log
   echo -e "​HTTP/​1.1 200 OK\r"   echo -e "​HTTP/​1.1 200 OK\r"
-  echo -e "​Content-Type: ​`/​usr/​bin/​file -bi \"​$filename\"​`\r"+  echo -e "​Content-Type: ​$(/​usr/​bin/​file -bi \"​$filename\"​)\r"
   echo -e "​\r"​   echo -e "​\r"​
   /bin/cat "​$filename"​   /bin/cat "​$filename"​
 else else
-  ​echo `date` ERR $filename >> $log+#  ​echo "$(date)" ​ERR $filename ​on "​$(hostname)" ​>> ​"$log"
   echo -e "​HTTP/​1.1 404 Not Found\r"​   echo -e "​HTTP/​1.1 404 Not Found\r"​
   echo -e "​Content-Type:​ text/​html;​\r"​   echo -e "​Content-Type:​ text/​html;​\r"​
   echo -e "​\r"​   echo -e "​\r"​
-  echo -e "<​h1>​$url Not Found in container `hostname`</​h1>"​+  echo -e "<​h1>​File $filename ​Not Found</​h1>​" 
 +#  ip=$(awk '/32 host/ { print f } {f=$2}'​ /​proc/​net/​fib_trie | sort -u | grep -v 127.0.0.1) 
 +#  echo -e "Host: $(hostname),​ IP: $ip, ver 1.1"
 fi fi
 </​code>​ </​code>​
Line 438: Line 453:
 </​code>​ </​code>​
  
 +  * [[Сервис INETD]]
 ==== Проверка ==== ==== Проверка ====
  
Line 449: Line 465:
  
 ==== Использование диалоговых окон ==== ==== Использование диалоговых окон ====
 +
 +<​code>​
 +ansible-pull-gpo#​ cat start.sh
 +</​code><​code>​
 +#!/bin/bash
 +
 +on_off() {
 +        grep -q "​$1"​ "​$2"​ && echo ON || echo OFF
 +}
 +
 +if [ -z ${BR+x} ]; then echo -e "​Variable BR (branch) is not set, specify, for example\nexport BR=master";​ exit 1; fi
 +
 +apt update || exit 0
 +
 +apt install dialog ansible git -y
 +
 +GP_OP_FILE=/​usr/​local/​etc/​gpo_options.yml
 +GP_EX_FILE=/​usr/​local/​bin/​ansible-pull-gpo.sh
 +
 +TEMP_FILE=$(mktemp -t '​XXXX'​)
 +
 +touch "​$GP_OP_FILE"​
 +
 +dialog ​ --title "​Configurations,​ Roles and Programs" ​ --clear --nocancel\
 +        --checklist "​Choose Options"​ 19 56 15 \
 +        CONF_RUS_INT:​ "​Russian Interface"​ "​$(on_off CONF_RUS_INT "​$GP_OP_FILE"​)"​ \
 +        PROG_THBIRD:​ "Mail client Thunderbird"​ "​$(on_off PROG_THBIRD "​$GP_OP_FILE"​)"​ \
 +        ROLE_ZAB_AG:​ "​Zabbix Agent" "​$(on_off ROLE_ZAB_AG "​$GP_OP_FILE"​)"​ \
 +        ROLE_OVPN1_CL:​ "​OpenVPN Client"​ "​$(on_off ROLE_OVPN1_CL "​$GP_OP_FILE"​)"​ \
 +2>"​$TEMP_FILE"​
 +
 +< "​$TEMP_FILE"​ tr " " "​\n"​ > "​$GP_OP_FILE"​
 +
 +rm "​$TEMP_FILE"​
 +
 +echo -e "​\nEND:"​ >> "​$GP_OP_FILE"​
 +
 +echo "/​usr/​bin/​ansible-pull -U http://​server.corpX.un/​student/​ansible-pull-gpo.git -C $BR -e @$GP_OP_FILE"​ > "​$GP_EX_FILE"​
 +
 +chmod +x "​$GP_EX_FILE"​
 +
 +##exit 0
 +
 +echo -e "0 */2 * * * sleep \${RANDOM:​0:​2}m;​ $GP_EX_FILE\n@reboot sleep 3m; $GP_EX_FILE"​ | crontab -
 +
 +"​$GP_EX_FILE"​
 +
 +#apt upgrade -y
 +
 +#reboot
 +</​code>​
  
 === Использование программы whiptail (Linux) === === Использование программы whiptail (Linux) ===
средства_программирования_shell.txt · Last modified: 2024/04/11 12:41 by val

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