Hello to everyone, sorry for the trouble but i need to improve my linux knowledge so
I have an Raspberry Pi 2 with noobs installed
Typing on console " type -p java " the response is :

/usr/bin/java

Typing on console " java -version " the response is :

java version "1.8.0"
Java(TM) SE Runtime Environment (build 1.8.0-b132)
Java HotSpot(TM) Client VM (build 25.0-b70, mixed mode)

All seem to be right but when i try to start server typing sh -x ./start.sh i get this :

• USER_LOCATION=/usr/mycontroller/bin
• dirname ./start.sh
• ACTUAL_LOCATION=.
• cd .
• HEAP_MIN=-Xms8m
• HEAP_MAX=-Xmx40m
• JAVA_VERSION=1.7
• MC_VERSION=0.0.2-alpha6
• CONF_PROPERTIES_FILE=../conf/mycontroller.properties
• CONF_LOG_FILE=../conf/logback.xml
• type -p java
  -p: not found
  java is /usr/bin/java
• [[ -n ]]
  ./start.sh: 39: ./start.sh: [[: not found
• echo java is not installed in our machine
  java is not installed in our machine
• [[ ]]
  ./start.sh: 45: ./start.sh: [[: not found
• cd /usr/mycontroller/bin

I will be enjoyed if someone could help me