I have some files with certein groups of numbers like "123412", "614016", etc,...
They have in common that they are groups of six numbers and the fifth character is a "1", also there are other groups of numbers that don't have the "1" as the fifth character or that don't have any particular caracteristic. And, there are a full range of ASCII chars.
What I would like to do is to replace the fifth character, if it is a number "1" on groups of 6 numbers for a "2".
Some examples:
435432 -> 435432 (Unchanged)
654636 -> 654636 (Unchanged)
123412 -> 123422
654317 -> 654327
595714 -> 595724
How can I perform that operation?
Thanks.
EDITED: Another little thing: How are String functions like Trim used?
Thanks again.
Replace the fifth character if it is a "1" on a gr
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