moved from utils

README.md

@@ -1,37 +1,106 @@
-# template-bash
+# wireguard-management
 
-Template repository for projects on bash
+Wireguard management and monitoring utils.
 
-* [`script.sh`](https://git.hmp.today/pavel.muhortov/template-bash#script-sh)
+* [`wg-client-management`.sh](https://git.hmp.today/pavel.muhortov/wireguard-management#wg-client-management-sh)
+* [`wg-connect-handling`.sh](https://git.hmp.today/pavel.muhortov/wireguard-management#wg-connect-handling-sh)
 
 ____
 
-## `script.sh`
+## `wg-client-management`.sh
 
 **Description:**  
-> returning current username if privileged rights are exist  
+> Creating or deleting client config for wireguard and sending config and info to email.  
-> or  
-> returning error, if privileged rights are not exist
 
 **Dependencies:**  
 >
-> * [bash](https://www.gnu.org/software/bash/) (tested version 5.1.4 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
+> * privileged rights
-> * [whoami](https://www.gnu.org/software/coreutils/whoami) (tested version 8.30 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
+> * [wireguard](https://www.wireguard.com/) (tested version 1.0.2 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
+> * [qrencode](https://github.com/fukuchi/libqrencode) (tested version 4.1.1 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
+> * [grepcidr](https://github.com/ryantig/grepcidr) (tested version 2.0 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
+> * [Python 3](https://www.python.org/downloads/) (tested version 3.9.5 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
+> * existing [/usr/local/bin/sendmail.py](https://git.hmp.today/pavel.muhortov/utils#sendmail-py)
 
 |  POSITION | PARAMETERS   |       DESCRIPTION      |    DEFAULT    |
 |-----------|--------------|------------------------|---------------|
-|     1     |**[qn]**|execution without pauses||
+|     1     |**add\|del**|add or delete client config|**REQUIRED**|
-|     2     |**[/path/to/conf]**|path to config|`./script.conf`|
+|     2     |**\<username\>**|client username|**REQUIRED**|
+|     3     |**\<address\>**|client ip address|**REQUIRED**|
+|     4     |**[-f]**,**[--force]**|service will restart after add\|del username||
 
-Example usage in terminal with bash:
+Example usage:  
 
 ```bash
-bash ./script.sh qn ./script.conf
+# download
+sudo wget https://git.hmp.today/pavel.muhortov/wireguard-managemen/raw/branch/master/wg-client-management.sh -O /etc/wireguard/wg-client-management.sh
+sudo chmod +x /etc/wireguard/wg-client-management.sh
 ```
 
-Example usage in terminal with make the script executable:
-
 ```bash
-chmod u+x ./script.sh
+# create link
-script.sh
+ln -s /etc/wireguard/wg-client-management.sh ./wg
+```
+
+```bash
+# create client
+sudo ./wg add username address
+```
+
+```bash
+# delete client and restart service
+sudo  ./wg del username address -f
+```
+
+```bash
+# check journal
+tail -f /var/log/wireguard/wg.log
+```
+
+____
+
+## `wg-connect-handling`.sh
+
+**Description:**  
+> Handling client connection and preparing stats for monitoring.  
+
+**Dependencies:**  
+>
+> * privileged rights
+> * [jq](https://github.com/stedolan/jq) (tested version 1.6 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
+> * [grepcidr](https://github.com/ryantig/grepcidr) (tested version 2.0 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
+> * [Python 3](https://www.python.org/downloads/) (tested version 3.9.5 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
+> * existing [/usr/local/bin/sendmail.py](https://git.hmp.today/pavel.muhortov/utils#sendmail-py)
+> * [bash](https://www.gnu.org/software/bash/) (tested versions: 5.1.4 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/), 5.0.17 on [Ubuntu 20](https://wiki.ubuntu.com/FocalFossa/ReleaseNotes), 4.2.46 on [CentOS 7](https://wiki.centos.org/Manuals/ReleaseNotes/CentOS7.2009))
+
+|  POSITION | PARAMETERS   |       DESCRIPTION      |    DEFAULT    |
+|-----------|--------------|------------------------|---------------|
+|     1     |**</path/to/dir>**|root path for counter, names, log|**REQUIRED**|
+|     2     |**[mail]**|send email notification||
+|     3     |**[geo]**|check client address geolocation||
+
+Example usage:  
+
+```bash
+# download
+sudo wget https://git.hmp.today/pavel.muhortov/wireguard-managemen/raw/branch/master/wg-connect-handling.sh -O /etc/wireguard/wg-connect-handling.sh
+sudo chmod +x /etc/wireguard/wg-connect-handling.sh
+```
+
+```bash
+# create root path for counter, names, log
+sudo mkdir /var/log/wireguard
+sudo chown -R root:root /var/log/wireguard
+sudo chmod -R 755 /var/log/wireguard
+```
+
+```bash
+# sudo crontab -e
+* * * * * bash /etc/wireguard/wg-connect-handling.sh /var/log/wireguard mail geo
+```
+
+```bash
+# check counter and names
+watch cat /var/log/wireguard/wg-counts.log
+# check journal
+tail -f /var/log/wireguard/wg-connect-handling.log
 ```

script.sh

@@ -1,125 +0,0 @@
-#! /bin/bash
-
-# DESCRIPTION:
-#   returning current username if privileged rights are exist
-#   or
-#   returning error, if privileged rights are not exist
-#
-# DEPENDENCIES:
-#   - whoami
-#
-# PARAMETERS:
-#   1: "qn" - execution without pauses
-#   2: custom configuration file path
-#
-# FUNCTIONS:
-#
-
-#######################################
-# Print message and add to log.
-# Globals:
-#   logs
-# Arguments:
-#   1: message to print and logging
-#######################################
-addtologs() {
-  echo "$(date +'%Y.%m.%d-%H:%M:%S') $1" | tee -a "${logs}"
-}
-
-#######################################
-# Waiting for press [ENTER].
-# Globals:
-#   None
-# Arguments:
-#   None
-#######################################
-execpause() {
-  read -r -p "Press [ENTER] to continue... "
-}
-
-#######################################
-# Exit procedure.
-# Globals:
-#   show
-# Arguments:
-#   None
-#######################################
-execquite() {
-  addtologs "execution time is $(($(date +%s)-time)) seconds, exit"
-  if [ "${show}" != "qn" ]; then
-    execpause
-  fi
-  exit
-}
-
-#######################################
-# Error exit procedure
-# Globals:
-#   None
-# Arguments:
-#   1: message to print and logging
-#######################################
-execerror() {
-  addtologs "error: $1"
-  execquite
-}
-
-#######################################
-# Parsing config file and creating global vars.
-# Globals:
-#   None
-# Arguments:
-#   None
-#######################################
-getconfig() {
-  logs=$(grep "logs=" "${conf}" | cut -d= -f2)
-}
-
-#######################################
-# Checking user rights.
-# Globals:
-#   None
-# Arguments:
-#   None
-# return:
-#   0 - if privileged rights, 1 - if not privileged rights
-#######################################
-checkroot() {
-  if [ "${EUID}" -ne 0 ]; then
-    return 1 # false
-  else
-    return 0 # true
-  fi
-}
-
-#
-# VARIABLES:
-#
-
-show=$1
-conf=$2
-if [ -z "${conf}" ] || [ "${conf}" == "-" ]; then
-  conf="$(dirname "$(realpath "$0")")/$(basename -s .sh "$0").conf"
-fi
-
-time=$(date +%s)
-cd "$(dirname "$(realpath "$0")")" || execerror
-if [ ! -e "${conf}" ]; then
-  :
-else
-  getconfig
-fi
-if [ -z "${logs}" ]; then
-  logs=/dev/null
-elif [ ! -e "${logs}" ]; then
-  touch "${logs}"
-fi
-
-#
-# MAIN:
-#
-
-checkroot \
-&& echo "Running as $(whoami)" \
-&& execquite \
-|| execerror "Restart this as root!"

wg-client-management.sh

@@ -0,0 +1,284 @@
+#! /bin/bash
+
+# DESCRIPTION:
+#   creating or deleting client config for wireguard
+#   and
+#   sending config and info to email
+#
+# DEPENDENCIES:
+#   - privileged rights
+#   - wireguard
+#   - qrencode
+#   - grepcidr
+#   - Python 3
+#   - existing /usr/local/bin/sendmail.py
+#
+# PARAMETERS:
+#   1: "add|del" - add or delete client config
+#   2: username - client username
+#   3: address - client ip address
+#   -f|--force - service will restart after username add|del
+#
+# FUNCTIONS:
+#
+
+#######################################
+# Print message and add to log.
+# Globals:
+#   logs
+# Arguments:
+#   1: message to print and logging
+#######################################
+addtologs() {
+  echo "$(date +'%Y.%m.%d-%H:%M:%S') $1" | tee -a "${logs}"
+}
+
+#######################################
+# Exit procedure.
+# Globals:
+#   show
+# Arguments:
+#   None
+#######################################
+execquite() {
+  addtologs "execution time is $(($(date +%s)-time)) seconds, exit"
+  exit
+}
+
+#######################################
+# Error exit procedure
+# Globals:
+#   None
+# Arguments:
+#   1: message to print and logging
+#######################################
+execerror() {
+  addtologs "error: $1"
+  execquite
+}
+
+#######################################
+# Checking user rights.
+# Globals:
+#   None
+# Arguments:
+#   None
+# return:
+#   0 - if privileged rights, 1 - if not privileged rights
+#######################################
+checkroot() {
+  if [ "${EUID}" -ne 0 ]; then
+    return 1 # false
+  else
+    return 0 # true
+  fi
+}
+
+#######################################
+# Send email notification about client connect
+# Globals:
+#   clientname
+#   faqprofile
+# Arguments:
+#   None
+#######################################
+startsendmail() {
+  subj="[WG Settings] $(cat /etc/hostname): ${clientname} client profile"
+  (
+    python3 /usr/local/bin/sendmail.py \
+    -u "$(grep "from=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    -p "$(grep "pass=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    -d "$(grep "dest=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    --smtp "$(grep "smtp=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    --port "$(grep "port=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    --stls "True" \
+    --subj "${subj}" \
+    --text "${faqprofile}" \
+    --file "/etc/wireguard/${clientname}.png,/etc/wireguard/${clientname}.conf" \
+    >> /dev/null 2>&1 &
+  )
+  addtologs "sent mail with subject '${subj}'"
+}
+
+#######################################
+# Create wireguard client certificates
+# Globals:
+#   clientname
+#   clientaddr
+#   servercfgname
+# Arguments:
+#   None
+#######################################
+createcert() {
+  wg genkey | tee "/etc/wireguard/pki/${clientname}-private.key" | wg pubkey > "/etc/wireguard/pki/${clientname}-public.key"
+  clientpublkey=$(cat "/etc/wireguard/pki/${clientname}-public.key")
+  clientprivkey=$(cat "/etc/wireguard/pki/${clientname}-private.key")
+  wg set wg0 peer "${clientpublkey}" allowed-ips "${clientaddr}/32"
+  {
+    echo -e "[Peer]"
+    echo -e "  PublicKey = ${clientpublkey}"
+    echo -e "  AllowedIPs = ${clientaddr}/32"
+  } >> ${servercfgname}
+  ip -4 route add "${clientaddr}/32" dev wg0
+}
+
+#######################################
+# Create wireguard client configuration
+# Globals:
+#   clientname
+#   clientaddr
+#   clientconfdef
+#   clientprivkey
+#   serverpublkey
+# Arguments:
+#   None
+#######################################
+createconf() {
+  clientconf=$(cat "${clientconfdef}")
+  clientconf=${clientconf//clientaddr/${clientaddr}}
+  clientconf=${clientconf//clientprivkey/${clientprivkey}}
+  clientconf=${clientconf//serverpublkey/${serverpublkey}}
+  clientconf=${clientconf//clientaddrs/${clientaddr}}
+  printf "%s\n" "${clientconf}" > "/etc/wireguard/${clientname}.conf"
+}
+
+#######################################
+# Create wireguard client info, qr-code
+# Globals:
+#   clientname
+# Arguments:
+#   None
+#######################################
+createinfo() {
+faqprofile=$(cat <<END
+WireGuard client:
+https://www.wireguard.com/install/
+END
+)
+  qrencode -o "/etc/wireguard/${clientname}.png" -t png -s 6 < "/etc/wireguard/${clientname}.conf"
+}
+
+#######################################
+# Delete wireguard client certificates
+# Globals:
+#   clientname
+#   clientpublkey
+#   servercfgname
+# Arguments:
+#   None
+#######################################
+deletecert() {
+  clientpublkey=$(cat "/etc/wireguard/pki/${clientname}-public.key")
+  clientprivkey=$(cat "/etc/wireguard/pki/${clientname}-private.key")
+  wg set wg0 peer "${clientpublkey}" remove
+  rm -f "/etc/wireguard/pki/${clientname}-public.key"
+  rm -f "/etc/wireguard/pki/${clientname}-private.key"
+  s2=$(grep -n "${clientpublkey}" ${servercfgname} | cut -d":" -f1)
+  s1=$(( s2 - 1 ))
+  s3=$(( s2 + 1 ))
+  sed -i "${s1}d;${s2}d;${s3}d" ${servercfgname}
+  ip -4 route del "${clientaddr}/32" dev wg0
+}
+
+#######################################
+# Delete wireguard client configuration
+# Globals:
+#   clientname
+# Arguments:
+#   None
+#######################################
+deleteconf() {
+  rm -f "/etc/wireguard/${clientname}.conf"
+}
+
+#######################################
+# Delete wireguard client qr-code
+# Globals:
+#   clientname
+# Arguments:
+#   None
+#######################################
+deleteinfo() {
+  rm -f "/etc/wireguard/${clientname}.png"
+}
+
+#
+# VARIABLES:
+#
+
+clienttodo=$1
+clientname=$2
+clientaddr=$3
+
+resetforce=0
+for argument in "${@}"; do
+  case $argument in
+  -f | --force )
+    resetforce=1
+    ;;
+  -* )
+    ;;
+  esac
+done
+
+time=$(date +%s)
+logs=/dev/null
+
+if ! command -v qrencode &> /dev/null || \
+  ! command -v /usr/local/bin/sendmail.py &> /dev/null || \
+  ! command -v python3 &> /dev/null; then
+  execerror "Not found dependencies"
+fi
+
+#
+# MAIN:
+#
+
+if checkroot; then
+  serverpublkey=$(cat /etc/wireguard/pki/server-public.key)
+  servercfgname="/etc/wireguard/wg0.conf"
+  clientpublkey=''
+  clientprivkey=''
+  clientconfdef="/etc/wireguard/client.conf.default"
+  logs=/var/log/wireguard/$(basename -s .sh "$0").log
+
+  if [ "${clienttodo}" == "add" ] && \
+     [ -n "${clientname}" ] && \
+     grepcidr "0.0.0.0/0" <(echo "${clientaddr}") >/dev/null; then
+    if [ -f "/etc/wireguard/${clientname}.conf" ] || \
+      grep -q -w "${clientaddr}/32" ${servercfgname}; then
+      execerror "wireguard config exist or address used, exit"
+    else
+      createcert && addtologs "created certificate for ${clientname}"
+      createconf && addtologs "created wg config file for ${clientname}"
+      createinfo && addtologs "created info file for ${clientname}"
+      startsendmail
+    fi
+    if [ "${resetforce}" -eq 1 ];then
+      addtologs "restarting wg-quick@wg0..."
+      systemctl restart wg-quick@wg0
+    fi
+  elif [ "${clienttodo}" == "del" ] && \
+     [ -n "${clientname}" ] && \
+     grepcidr "0.0.0.0/0" <(echo "${clientaddr}") >/dev/null; then
+    if [ -f "/etc/wireguard/${clientname}.conf" ]; then
+      deleteconf && addtologs "deleted wg config file for ${clientname}"
+    fi
+    if [ -f "/etc/wireguard/${clientname}.png" ]; then
+      deleteinfo && addtologs "deleted info file for ${clientname}"
+    fi
+    if grep -q -w "${clientaddr}/32" ${servercfgname}; then
+      deletecert && addtologs "deleted certificate for ${clientname}"
+    fi
+    if [ "${resetforce}" -eq 1 ];then
+      addtologs "restarting wg-quick@wg0..."
+      systemctl restart wg-quick@wg0
+    fi
+  else
+    printf "%s\n" "Usage example: $0 'add' 'username(surname)' 'address(ww.xx.yy.zz) -f'"
+    printf "%s\n" "Usage example: $0 'del' 'username(surname)' 'address(ww.xx.yy.zz)'"
+  fi
+else
+  execerror "Restart this as root!"
+fi
+execquite

wg-connect-handling.sh

@@ -0,0 +1,208 @@
+#! /bin/bash
+
+# DESCRIPTION:
+#   handling client connection
+#   and
+#   preparing stats for monitoring
+#
+# DEPENDENCIES:
+#   - privileged rights
+#   - jq
+#   - grepcidr
+#   - Python 3
+#   - existing /usr/local/bin/sendmail.py
+#
+# PARAMETERS:
+#   1: root path for counter, names, log
+#   2: "mail" - send email notification
+#   3: "geo" - check client address geolocation
+#
+# FUNCTIONS:
+#
+
+#######################################
+# Print message and add to log.
+# Globals:
+#   logs
+# Arguments:
+#   1: message to print and logging
+#######################################
+addtologs() {
+  echo "$(date +'%Y.%m.%d-%H:%M:%S') $1" | tee -a "${logs}"
+}
+
+#######################################
+# Exit procedure.
+# Globals:
+#   show
+# Arguments:
+#   None
+#######################################
+execquite() {
+  addtologs "execution time is $(($(date +%s)-time)) seconds, exit"
+  exit
+}
+
+#######################################
+# Error exit procedure
+# Globals:
+#   None
+# Arguments:
+#   1: message to print and logging
+#######################################
+execerror() {
+  addtologs "error: $1"
+  execquite
+}
+
+#######################################
+# Checking user rights.
+# Globals:
+#   None
+# Arguments:
+#   None
+# return:
+#   0 - if privileged rights, 1 - if not privileged rights
+#######################################
+checkroot() {
+  if [ "${EUID}" -ne 0 ]; then
+    return 1 # false
+  else
+    return 0 # true
+  fi
+}
+
+#######################################
+# Get information about client address
+# Globals:
+#   flaggeol
+#   show_from_addr
+#   conf_client_nm
+# Arguments:
+#   None
+#######################################
+# shellcheck disable=SC2154
+expandaddress() {
+  ipinfo="Source address is ${show_from_addr}"
+  localnetworks="10.0.0.0/8
+                 100.64.0.0/10
+                 127.0.0.1/8
+                 172.16.0.0/12
+                 192.168.0.0/16
+                "
+  if ! grepcidr "${localnetworks}" <(echo "${show_from_addr}") >/dev/null; then
+    if [ "${flaggeol}" == "geo" ]; then
+      ipinfo=$(curl "https://api.ipbase.com/v1/json/${show_from_addr}")
+      if [ "$(jq -r '.country_name' <<< "$ipinfo")" != "" ]; then
+        z=$(jq -r '.zip_code' <<< "$ipinfo")
+        c=$(jq -r '.country_name' <<< "$ipinfo")
+        r=$(jq -r '.region_name' <<< "$ipinfo")
+        t=$(jq -r '.city' <<< "$ipinfo")
+        ipinfo="Source address ${show_from_addr} is from ${z}, ${c}, ${r}, ${t}"
+      fi
+    fi
+  fi
+  addtologs "client ${conf_client_nm} checked. ${ipinfo}"
+}
+
+#######################################
+# Send email notification about client connect
+# Globals:
+#   ipinfo
+#   conf_client_nm
+#   conf_ipaddress
+# Arguments:
+#   None
+#######################################
+startsendmail() {
+  subj="[VPN Connected] $(cat /etc/hostname): ${conf_client_nm} connect to ${conf_ipaddress}"
+  (
+    python3 /usr/local/bin/sendmail.py \
+    -u "$(grep "from=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    -p "$(grep "pass=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    -d "$(grep "dest=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    --smtp "$(grep "smtp=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    --port "$(grep "port=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    --stls "True" \
+    --subj "${subj}" \
+    --text "${ipinfo}" \
+    >> /dev/null 2>&1 &
+  )
+  addtologs "sent mail with subject '${subj}'"
+}
+
+#
+# VARIABLES:
+#
+
+pathroot=$1
+flagmail=$2
+flaggeol=$3
+
+time=$(date +%s)
+logs="${pathroot}/$(basename -s .sh "$0").log"
+counts_file="${pathroot}/wg-counts.log"
+counts_temp=$(cat "${counts_file}")
+if [ -z "${pathroot}" ]; then
+  logs=/dev/null
+  execerror "Usage example: $0 '/var/log/wireguard' '-' '-'"
+elif [ ! -e "${logs}" ]; then
+  touch "${logs}"
+fi
+
+if ! command -v curl &> /dev/null || \
+  ! command -v /usr/local/bin/sendmail.py &> /dev/null || \
+  ! command -v python3 &> /dev/null || \
+  ! command -v grepcidr &> /dev/null || \
+  ! command -v jq &> /dev/null; then
+  execerror "Not found dependencies"
+fi
+
+#
+# MAIN:
+#
+
+if checkroot; then
+  allowed_cfg=$(find /etc/wireguard/ -name "*.conf" | grep -v "wg0.conf")
+  counter_now=0
+  clients_now=""
+  while read -r file; do
+    conf_keepalive=$(grep "PersistentKeepalive" "${file}" |cut -d"=" -f2 |tr -d " ")
+    conf_ipaddress=$(grep "Address" "${file}" |cut -d"=" -f2  |cut -d"/" -f1 |tr -d " ")
+    conf_client_nm=$(basename -s .conf "${file}")
+    show_handshake=$(wg show all dump |grep "${conf_ipaddress}" |cut -f6)
+    show_from_addr=$(wg show all dump |grep "${conf_ipaddress}" |cut -f4 |cut -d":" -f1)
+    if [ "${show_handshake}" -ne 0 ]; then
+      calc_handshake="$(date -d "-${conf_keepalive} min" +"%s")"
+      if [ "${show_handshake}" -ge "${calc_handshake}" ]; then
+	      (( counter_now ++))
+        connect_status="connected"
+        if ping -q -c 1 -W 1 "${conf_ipaddress}" > /dev/null; then
+          connect_status="connected, ping responded"
+        else
+          connect_status="connected, ping loss"
+        fi
+        clients_now+=$(printf "%s\n\r" "${conf_client_nm}_${conf_ipaddress}")
+        if ! grep -q "${conf_client_nm}_${conf_ipaddress}" <<< "${counts_temp}"; then
+          addtologs "client ${conf_client_nm} ${connect_status}"
+          expandaddress
+          if [ "${flagmail}" == "mail" ]; then
+            startsendmail
+          fi
+        fi
+      else
+        connect_status="disconnected"
+        if grep -q "${conf_client_nm}_${conf_ipaddress}" <<< "${counts_temp}"; then
+          addtologs "client ${conf_client_nm} ${connect_status}"
+        fi
+      fi
+    else
+      connect_status="never connected"
+    fi
+  done <<< "$allowed_cfg"
+  printf "%s\n" "total=${counter_now}=" > "${counts_file}"
+  printf "%s\n" "${clients_now}" >> "${counts_file}"
+else
+  execerror "Restart this as root!"
+fi
+execquite