Hello, Badz Tuviera,
I’m really sorry, but I did not fully understand what you want to achieve :-(
Seemingly, you didn’t say what are the replacement strings, for either, the word TAFUNA and the number 203, in the five digits number 42031. May be, did you mean that you want to delete them ?
But I did understand that the first digit 4 of the number 42031 must be replaced by the digit 2 !
So, giving your original text, below :
UMTS U81M200LEONE 3G_Leone-4 -14.3479 -170.781 4357 28 42004 240
UMTS U81M203TAFUNA 3G_Tafuna-1 -14.3235 -170.7172 4357 80 42031 130
Which modified text do you expect to ?
May be, you can provide some additional examples or explanations ! As usual, when a problem is clearly defined, the solution is “half” found !
Best Regards,
guy038