How to get substring in the given string from Robot Framework?

Given String "Showing 1 to 10 of 3,311 entries". I need to get the 3,311 separately form that string. I can use this ${Number} = Get Substring ${countString} 19 24 but here problem is index was changed.

Solution

You can use the Split String keyword and separate the each part of string by ${SPACE}
Additionaly I removed , from the number just in case you need it. Slightly different way to achieve same - https://stackoverflow.com/a/57786634/5400362

*** Variable ***
${string1}=        Showing 1 to 10 of 3,311 entries

*** Testcases ***
Get Number From String

@{list_string}=     split string    ${string1}      ${SPACE}
log             ${list_string}[5]
${num}=         evaluate       '${list_string}[5]'.replace(',','')

output