Jenkins shell not assuming two variables-CodePudding

I'm building a jenkins job where depending on a choice parameter ($APP) it will use pref variable and "attach" to the host name

The hostname will be used in ansible playbook to deploy the applicaion and use --limit to point the host we define in the choice parameter I defined as HOST1

case $APP in
  "app01")
      PREF=WS-APP01;;
  "app02")
      PREF=WS-APP02;;
  "app03")
      PREF=WS-app03;;
   *)
      exit 2;;
  
esac


H2=""
H3=""



if ! [ -z $HOSTS3 ]
then
    H3="$PREF_${HOSTS3}*:"
fi
if ! [ -z $HOSTS2 ]
then
  H2="$PREF_${HOSTS2}*:"
fi

HOSTS="$PREF_${HOSTS1}*:$H2:$H3"

echo $PREF_$HOSTS1

Up until here seems quite simple and self explanatory.

But when I run to test the echo, it only returns the host foun in $HOSTS1

10:28:58   case $APP in
10:28:58   PREF=APP01
10:28:58   H2=
10:28:58   H3=
10:28:58   '[' -z ']'
10:28:58   '[' -z ']'
10:28:58   HOSTS='qaaciapp00001v*::'
10:28:58   echo qaaciapp00001v

Tried to google this behavior but no success finding an explanation. Thank you in advance.

CodePudding user response：

Try one of the following for the echo.

echo "$PREF_$HOSTS1"

echo "\$PREF_$HOSTS1"

CodePudding user response：

Brackets... Brackets saved the day...

case $APP in
  "app01")
      PREF=WS-APP01;;
  "app02")
      PREF=WS-APP02;;
  "app03")
      PREF=WS-app03;;
   *)
      exit 2;;
  
esac


H2=""
H3=""



if ! [ -z $HOSTS3 ]
then
    H3="${PREF}_${HOSTS3}*:"
fi
if ! [ -z $HOSTS2 ]
then
  H2="${PREF}_${HOSTS2}:"
fi

HOSTS="${PREF}_${HOSTS1}:$H2:$H3"

echo ${PREF}_${HOSTS1}

Thank you very much for you assistance ycr