Given sed is widely available, let's dive into how you can achieve similar results:
However, to actually target and replace just the ages (assuming a comma-separated format), a more precise approach would be needed: rarreg
Using an illegitimate rarreg.key means:
This example replaces any sequence of digits with "replacement". Given sed is widely available, let's dive into
Downloading a rarreg.key from unofficial sources is dangerous: Given sed is widely available