I have lots of files with several hundred rows and columns.
I would like to substitute one line and keep the others as is. For that line I would like to add 0.8 to each column
input:
a,s,d,f,g,h
1,2,3,4,5,6
ed,rf,hg,rt,fg,kj
output:
a,s,d,f,g,h
1.8,2.8,3.8,4.8,5.8,6.8
ed,rf,hg,rt,fg,kj
but...