This is really essential sometime, we want to check the syntax and validate our script rather then running it upfront.
Debugging Options set -o Option Command-line Option Action
noexec -n Don't run commands; check for syntax errors only
verbose -v Echo commands before running them
xtrace -x Echo commands after command-line processing
$bash -n myscript.sh
$/bin/sh -nv myscript.sh
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