How to use the environment variables set by a parameterized build?

[Martin Lichtin]

Hi
For a parameterized build with one "run parameter" (let's name it X), Jenkins set three environment variables.

X
X.jobName
X.number

How can the latter two be used in a pre-step shell script?
Bash cannot handle environment variables containing a dot, it seems.

$ echo ${X.jobName}
bash: ${X.jobName}: bad substitution

[r2_]

Hey,

Checkout the environmental variable here: https://wiki.jenkins-ci.org/display/JENKINS/Building+a+software+project

Short answer: 

echo ${JOB_NAME}

echo ${BUILD_NUMBER}

[Martin Lichtin]

I'm talking about a build job that is parameterized. The parameter is of type "run parameter".
Jenkins creates variables with names that cannot be used in a pre-step shell script. Quite annoying.