Create packagecheck.sh

Author: damalis

packagecheck.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+PACKAGES=$1
+
+notinstall_pkgs=""
+install=false
+
+for pkg in $PACKAGES; do
+	status="$(dpkg-query -W --showformat='${db:Status-Status}' "$pkg" 2>&1)"
+	if [ ! $? = 0 ] || [ ! "$status" = installed ]; then
+		install=true
+		notinstall_pkgs=$pkg" "$notinstall_pkgs
+	else
+		installed_pkgs=$pkg" "$installed_pkgs
+	fi
+done
+
+if "$install"; then
+	apt-get install -y --no-install-recommends $notinstall_pkgs && rm -rf /var/lib/apt/lists/*
+else
+	echo "### WARNING ${installed_pkgs} Package[s] already installed. ###"
+fi