Created SC2093 (markdown)

SC2093.md

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+## Remove "exec " if script should continue after this command.
+
+### Problematic code:
+
+```sh
+echo "Starting compilation"
+exec ./compile
+echo "Starting deployment"
+exec ./deploy
+```
+
+### Correct code:
+
+```sh
+echo "Starting compilation"
+./compile
+echo "Starting deployment"
+./deploy
+```
+
+### Rationale:
+
+The script contains an `exec` command followed by other commands in the same block. This is likely an error because the script will not resume after an `exec` command.
+
+Instead, "exec" refers to the Unix process model's idea of execution (see [`execve(2)`](http://man7.org/linux/man-pages/man2/execve.2.html)), in which the current process stops its current program and replaces it with a new one. This is mainly used in wrapper scripts.
+
+To execute another script or program and then continue, simply drop the `exec` as in the example.
+
+### Exceptions:
+
+If the code after the `exec` is only there to handle a failure in executing the command you can ignore this warning. For this reason, ShellCheck suppresses the warning if `exec` is only followed by `echo`/`exit` commands.
+
+### Related resources:
+
+* StackOverflow: [My shell script stops after exec](https://stackoverflow.com/questions/3877657/my-shell-script-stops-after-exec)