I want the short commit id of all the git repositories on windows slave node. I have done the following in my Jenkinsfile :
 checkout([$class: 'GitSCM', branches: [[name: "develop"]], doGenerateSubmoduleConfigurations: false, extensions: [[$class: 'SubmoduleOption', disableSubmodules: true, parentCredentials: false, recursiveSubmodules: true, reference: '', trackingSubmodules: false], [$class: 'RelativeTargetDirectory', relativeTargetDir: '']], submoduleCfg: [], userRemoteConfigs: [[credentialsId: '***', url: "GITURL"]]])
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checkout([$class: 'GitSCM', branches: [[name: 'master']], doGenerateSubmoduleConfigurations: false, extensions: [[$class: 'SubmoduleOption', disableSubmodules: true, parentCredentials: false, recursiveSubmodules: true, reference: '', trackingSubmodules: false], [$class: 'RelativeTargetDirectory', relativeTargetDir: 'XYZ']], submoduleCfg: [], userRemoteConfigs: [[credentialsId: '***', url: "GITURL1"]]])
So after the after first checkout GITURL repository ( branch - develop) is getting downloaded in the jenkins workspace under job name folder on windows slave node and after the second checkout,GITURL1 repository (branch - master) is getting downloaded inside the same job name folder under the folder - XYZ. I want to capture the short commit id for both the repositories.

I have written the following command to capture the short commit id.
 def SHORT_COMMIT_ID = bat (returnStdout: true, script: "@git log -n 1 --pretty=format:'%%h'").trim()
echo 'Commit id ' + "$SHORT_COMMIT_ID"
def SHORT_COMMIT_ID_XYZ = bat (returnStdout: true, script: "@git log -n 1 --pretty=format:'%%h' – XYZ").trim()
echo 'XYZ Commit id ' + "$SHORT_COMMIT_ID_XYZ"
for first commit id value is getting returned correctly. but for XYZ commit id getting blank value.