diff --git a/agent2_autoinstall.sh b/agent2_autoinstall.sh
index f7f2988..2cf3632 100755
--- a/agent2_autoinstall.sh
+++ b/agent2_autoinstall.sh
@@ -49,27 +49,44 @@ if [[ $EUID -ne 0 ]]; then
     exit 1
 fi
 
+_info "Checking dependencies ..."
+if [ -x "$(command -v sed)" ]; then _info "sed - OK"; else _error "sed - MISSING" ; exit 1 ; fi
+if [ -x "$(command -v hostname)" ]; then _info "hostname - OK"; else _error "hostname - MISSING" ; exit 1 ; fi
+if [ -x "$(command -v ip)" ]; then _info "ip - OK"; else _error "ip - MISSING" ; exit 1 ; fi
+
 # Download and install the Zabbix agent
 if [[ "$OS" == *"CentOS"* ]]; then
+    if [ -x "$(command -v rpm)" ]; then _info "rpm - OK"; else _error "rpm - MISSING" ; exit 1 ; fi
+    if [ -x "$(command -v yum)" ]; then _info "yum - OK"; else _error "yum - MISSING" ; exit 1 ; fi
+
     if [[ "$VERSION" == "6"* ]]; then
+        if [ -x "$(command -v service)" ]; then _info "service - OK"; else _error "service - MISSING" ; exit 1 ; fi
+        if [ -x "$(command -v chkconfig)" ]; then _info "chkconfig - OK"; else _error "chkconfig - MISSING" ; exit 1 ; fi
+
         _info "Downloading and installing Zabbix repositories ..."
         rpm -Uvh https://repo.zabbix.com/zabbix/6.4/rhel/6/x86_64/zabbix-release-6.4-1.el6.noarch.rpm &>> "$LOG_FILE"
         yum clean all &>> "$LOG_FILE"
         _info "Installing Zabbix Agent 2 ..."
         yum install zabbix-agent2 zabbix-agent2-plugin-* -y &>> "$LOG_FILE"
     elif [[ "$VERSION" == "7"* ]]; then
+        if [ -x "$(command -v systemctl)" ]; then _info "systemctl - OK"; else _error "systemctl - MISSING" ; exit 1 ; fi
+
         _info "Downloading and installing Zabbix repositories ..."
         rpm -Uvh https://repo.zabbix.com/zabbix/6.4/rhel/7/x86_64/zabbix-release-6.4-1.el7.noarch.rpm &>> "$LOG_FILE"
         yum clean all &>> "$LOG_FILE"
         _info "Installing Zabbix Agent 2 ..."
         yum install zabbix-agent2 zabbix-agent2-plugin-* -y &>> "$LOG_FILE"
     elif [[ "$VERSION" == "8"* ]]; then
+        if [ -x "$(command -v systemctl)" ]; then _info "systemctl - OK"; else _error "systemctl - MISSING" ; exit 1 ; fi
+
         _info "Downloading and installing Zabbix repositories ..."
         rpm -Uvh https://repo.zabbix.com/zabbix/6.4/rhel/8/x86_64/zabbix-release-6.4-1.el8.noarch.rpm &>> "$LOG_FILE"
         dnf clean all &>> "$LOG_FILE"
         _info "Installing Zabbix Agent 2 ..."
         dnf install zabbix-agent2 zabbix-agent2-plugin-* -y &>> "$LOG_FILE"
     elif [[ "$VERSION" == "9"* ]]; then
+        if [ -x "$(command -v systemctl)" ]; then _info "systemctl - OK"; else _error "systemctl - MISSING" ; exit 1 ; fi
+
         _info "Downloading and installing Zabbix repositories ..."
         sed -i '/\[epel\]/a excludepkgs=Zabbix*' /etc/yum.repos.d/epel.repo &>> "$LOG_FILE"
         rpm -Uvh https://repo.zabbix.com/zabbix/6.4/rhel/9/x86_64/zabbix-release-6.4-1.el9.noarch.rpm &>> "$LOG_FILE"
@@ -81,6 +98,11 @@ if [[ "$OS" == *"CentOS"* ]]; then
         exit 1
     fi
 elif [[ "$OS" == *"Debian"* ]]; then
+    if [ -x "$(command -v wget)" ]; then _info "wget - OK"; else _error "wget - MISSING" ; exit 1 ; fi
+    if [ -x "$(command -v dpkg)" ]; then _info "dpkg - OK"; else _error "dpkg - MISSING" ; exit 1 ; fi
+    if [ -x "$(command -v apt)" ]; then _info "apt - OK"; else _error "apt - MISSING" ; exit 1 ; fi
+    if [ -x "$(command -v systemctl)" ]; then _info "systemctl - OK"; else _error "systemctl - MISSING" ; exit 1 ; fi
+
     if [[ "$VERSION" == "9"* ]]; then
         _info "Downloading Zabbix repositories package ..."
         wget https://repo.zabbix.com/zabbix/6.4/debian/pool/main/z/zabbix-release/zabbix-release_6.4-1+debian9_all.deb &>> "$LOG_FILE"