Dear Monks,

I am relatively new to perl and would like to request for a code that would enable me to change the first number of a line of vectors for all lines in the txt file.

An example of the vectors looks like this:

0 1:120.000000 2:0.000000 3:120.000000 4:262.000000 5:120.000000 6:349.000000

Every line starts with 0, and i would like to replace that 0 with 1

I have around 100 of these lines in my file and any help would be greatly appreciated!

In reply to changing the first number of every line by jinism

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