How to use this command:
perl -pi -e 's/[^[:ascii:]]/#/g' file
to change only characters at offset A to offset B of each line?
How to use this command: perl -pi -e ‘s/[^[:ascii:]]/#/g’ file to change only characters
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How to use this command:
perl -pi -e 's/[^[:ascii:]]/#/g' file
to change only characters at offset A to offset B of each line?
Alternatively to rubber boots’ answer, you can operate on a substring instead of the whole string to begin with:
To illustrate:
will print
In this code, the first offset is 0-based, and you have to use the length instead of the second offset, so it will be
substr($_, A-1, B-A).