Solving minor Docker issues

BuildServer/Docker/Dockerfile_build_xenial_gfortran

@@ -11,4 +11,4 @@ ENV CI_COMMIT_REF_NAME=${CI_COMMIT_REF_NAME}
 COPY ./ /app/
 WORKDIR /app
 
-CMD BuildServer/Unix/build.sh gfortran; cp -a build_gfortran /artifacts/
\ No newline at end of file
+CMD BuildServer/Unix/build.sh gfortran && cp -a build_gfortran /artifacts/
\ No newline at end of file

BuildServer/Docker/Dockerfile_build_xenial_ifort

@@ -12,4 +12,4 @@ ENV HDF5_INCLUDE_PATH=/hdf5/include
 COPY ./ /app/
 WORKDIR /app
 
-CMD BuildServer/Unix/build.sh ifort; cp -a build_ifort /artifacts/
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+CMD BuildServer/Unix/build.sh ifort && cp -a build_ifort /artifacts/
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BuildServer/Docker/clean.sh

 # Return the docker containers that are exited
-exited_containers=`docker ps -q -f "status=exited"`
+exited_containers=`docker ps -q "status=exited"`
 # If some have been found, remove them
 if [ -n "$exited_containers" ]
 then
@@ -7,7 +7,7 @@ then
 fi
 
 # Return the docker images that are in dangling state
-images=`docker images -q -f "dangling=true"`
+images=`docker images -q "dangling=true"`
 # If some dangling images have been found, remove them
 if [ -n "$images" ]
 then