"set -x" enables debug-mode, for anyone else heading off to Google to investigate. So given the script: #!/bin/bash set -x echo "Hello World" The

"set -x" enables debug-mode, for anyone else heading off to Google to investigate. So given the script: #!/bin/bash set -x echo "Hello World" The output would be: + echo 'Hello World!' Hello World! Where the "+ ..." is the command executed. And it can be disabled with "set +x".