Add commandline arguments to console.sh

console.sh

@@ -1,18 +1,66 @@
 #!/bin/bash
 
-echo -n 'Host: '
+display_help() {
-read drachost
+    echo "Usage: $0 [-i host] [-u user] [-p password]"
-
-echo -n 'User: '
-read dracuser
-
-echo -n 'Password: '
-read -s dracpass
     echo
+    echo "Environment Variables:"
+    echo "    IDRAC_ADDRESS"
+    echo "    IDRAC_USER"
+    echo "    IDRAC_PASSWORD"
+    echo "    SOCKS_PROXY"
+}
+
+while [ $# -gt 0 ]; do
+    case "$1" in
+        -h)
+            display_help
+            exit 0
+            ;;
+        -i)
+            shift
+            IDRAC_ADDRESS="$1"
+            ;;
+        -u)
+            shift
+            IDRAC_USER="$1"
+            ;;
+        -p)
+            shift
+            IDRAC_PASSWORD="$1"
+            ;;
+        *)
+            display_help >&2
+            exit 2
+            ;;
+    esac
+    shift
+done
+
+while [ -z "$IDRAC_ADDRESS" ]; do
+    echo -n 'Host: '
+    if ! read IDRAC_ADDRESS; then
+        exit 1
+    fi
+done
+
+while [ -z "$IDRAC_USER" ]; do
+    echo -n 'User: '
+    if ! read IDRAC_USER; then
+        exit 1
+    fi
+done
+
+while [ -z "$IDRAC_PASSWORD" ]; do
+    echo -n 'Password: '
+    if ! read -s IDRAC_PASSWORD; then
+        exit 1
+    fi
+    echo
+done
 
 if [ -z "${SOCKS_PROXY}" ]
 then
-    java -cp avctKVM.jar -Djava.library.path=./lib com.avocent.idrac.kvm.Main ip=$drachost vmprivilege=true kmport=5900 vport=5900 user=$dracuser passwd=$dracpass apcp=1 version=2
+    java -cp avctKVM.jar -Djava.library.path=./lib com.avocent.idrac.kvm.Main ip="$IDRAC_ADDRESS" vmprivilege=true kmport=5900 vport=5900 user="$IDRAC_USER" passwd="$IDRAC_PASSWORD" apcp=1 version=2
 else
-    java -cp avctKVM.jar -Djava.library.path=./lib -DsocksProxyHost=$SOCKS_PROXY com.avocent.idrac.kvm.Main ip=$drachost vmprivilege=true kmport=5900 vport=5900 user=$dracuser passwd=$dracpass apcp=1 version=2
+    java -cp avctKVM.jar -Djava.library.path=./lib -DsocksProxyHost=$SOCKS_PROXY com.avocent.idrac.kvm.Main ip="$IDRAC_ADDRESS" vmprivilege=true kmport=5900 vport=5900 user="$IDRAC_USER" passwd="$IDRAC_PASSWORD" apcp=1 version=2
 fi