Silence environment configuration commands. Fixes #1621 (#1622)

Author: brollb

src/common/compute/backends/sciserver-compute/files/prepare-and-run.sh

@@ -1,9 +1,10 @@
 RESULTS_DIR=$(pwd)
 JOB_DIR=$1
 
-curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
-export NVM_DIR="$HOME/.nvm" && [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
-nvm install 12
+echo "Configuring environment on SciServer..."
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash > /dev/null
+export NVM_DIR="$HOME/.nvm" && [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" > /dev/null
+nvm install 12 > /dev/null
 
 cd $JOB_DIR;
 npm install [email protected] rimraf@^2.4.0 [email protected] @babel/runtime@^7.7.2 [email protected] [email protected] [email protected] [email protected] > /dev/null