grep pattern from command output-CodePudding

I want to run the following in Linux via execute shell in jenkins.

when I run it directly in Linux, I get:

$ polyspace-access -list-project XX/YY -host MyHost -protocol http -login MyUsername -encrypted-password MyPassword
Connecting to MyHost 
Connecting as MyUsername
Get project list with the last Run Id
XX/YY RUN_ID 10
Command Completed

I can run the same command in Jenkins, but --

export RunID=`polyspace-access -list-project XX/YY -host MyHost -protocol http -login MyUsername -encrypted-password MyPassword`
echo "This is my RunID: $RunID"

... and here is the result:

15:06:59 This is my RuleID: Connecting to MyHost 15:06:59 Connecting as MyUsername 15:06:59 Get project list with the last Run Id 15:06:59 XX/YY RUN_ID 10 15:06:59 Command Completed

How can I read only the RUN_ID number from the results?

CodePudding user response：

You can do this with some groovy. Please check the following sample pipeline. I'm just echoing your output in the script block.

pipeline {
    agent any

    stages {
        stage('GetID') {
            steps {
                script {
                    string = sh(returnStdout: true, script: 'echo "15:06:59 This is RUN10X my RuleID: Connecting to MyHost 15:06:59 Connecting as MyUsername 15:06:59 Get project list with the last Run Id 15:06:59 XX/YY RUN_ID 10 15:06:59 Command Completed"').trim()
                    def runId = string.split("RUN_ID")[1].split(" ")[1]
                    echo "$runId"
                } 
            }
        }
    }
}

Note: You may need to improve the script part to handle error cases.

CodePudding user response：

If your shell has awk available, you could pipe the output through it to ask for the third field in the line that contains the text "RUN_ID":

runid=`polyspace-access -list-project XX/YY -host MyHost -protocol http -login MyUsername -encrypted-password MyPassword | awk '/RUN_ID/ { print $3 }'`
echo "This is my RunID: $runid"

You could adjust the pattern matching to be stricter if you know that XX/YY is a fixed string. You could also adjust the printing to $NF if there might be more than three fields but the desired number is always the last field.

CodePudding user response：

if you want to generalize it, such that "RUN_ID" has spaces around it, and always print out the last column, try :

# (broken apart for readability - it's one single string)

echo 'abc def -$314,159,265,358,979,323.84 XX/YY 2277118.822881188' 
     ' RUN_ID 3321928094887362347870319429489390175' | 

{m,g}awk   '$!NF=$(NF*=!_!~NF)' FS=' RUN[_]ID '
    gawk     '$_=$(NF*=!_<NF)'  FS=' RUN[_]ID '
    mawk '$!  NF=$--NF'         FS=' RUN[_]ID '

3321928094887362347870319429489390175