Passing a string to a bash script via an argument

I'm writing a bash script that, amongst other things, triggers a git commit on a codebase for a specified Drupal 6 site. The script accepts two arguments, the second of which is the commit message for the git commit.

#开发者_如何学Go!/bin/sh

directoryName=${1}
commitMsg=${2}

echo $directoryName
echo $commitMsg

git add .
git commit -vam "The commit message"

The script is called like this:

sh git-bash-test.sh name_of_directory "Custom commit message"

How can I change out "The commit message" for the value stored in $commitMsg?

Simply replace it with "$commitMsg":

git commit -vam "$commitMsg"

sh git-bash-test.sh name_of_directory "$commitMsg"

Note the double-quotes around $commitMsg.