Don't use backticks.

Author: williamboman

scripts/init-git-post-commit

@@ -17,9 +17,9 @@ hook=$(cat <<EOF
 
 ### git-stats hook (begin) ###
 # Copy last commit hash to clipboard on commit
-commit_hash=\`git rev-parse HEAD\`
-repo_url=\`git config --get remote.origin.url\`
-commit_date=\`git log -1 --format=%cd\`
+commit_hash=\$(git rev-parse HEAD)
+repo_url=\$(git config --get remote.origin.url)
+commit_date=\$(git log -1 --format=%cd)
 commit_data="\"{ \"date\": \"\$commit_date\", \"url\": \"\$repo_url\", \"hash\": \"\$commit_hash\" }\""
 git-stats --record "\$commit_data"
 ### git-stats hook (end) ###