我注意到docker的许多entrypoint.sh脚本都是这样的：
@H_403_6@#!/bin/bash set -e ... code ... exec "$@"
什么是set -e和exec“$ @”？
#!/bin/bash set -e ... code ... exec "$@"
什么是set -e和exec“$ @”？
看到：
> What are the special dollar sign shell variables?
> Need explanations for Linux bash builtin exec command behavior
