Using awk to do arithmetic operation

Shell Programming and Scripting
1

Hi,

I've this following text file

FileVersion      = 1.03
Filetype         = meteo_on_curvilinear_grid
TIME = 0 hours since 2016-10-03 12:00:00 +00:00
 -6.855  -6.828  -6.801  -6.774  -6.747  -6.719  -6.691  -6.663  -6.634  -6.606  -6.577  -6.548  -6.519  -6.489  
 TIME = 0 hours since 2016-10-03 12:00:00 +00:00
 -6.855  -6.828  -6.801  -6.774  -6.747  -6.719  -6.691  -6.663  -6.634  -6.606  -6.577  -6.548  -6.519  -6.489  
 TIME = 0 hours since 2016-10-03 12:00:00 +00:00
 -6.855  -6.828  -6.801  -6.774  -6.747  -6.719  -6.691  -6.663  -6.634  -6.606  -6.577  -6.548  -6.519  -6.489

and I'm trying to create like this:

FileVersion      = 1.03
Filetype         = meteo_on_curvilinear_grid
TIME = 0 hours since 2016-10-03 12:00:00 +00:00
 -6.855  -6.828  -6.801  -6.774  -6.747  -6.719  -6.691  -6.663  -6.634  -6.606  -6.577  -6.548  -6.519  -6.489  
 TIME = 6 hours since 2016-10-03 12:00:00 +00:00
 -6.855  -6.828  -6.801  -6.774  -6.747  -6.719  -6.691  -6.663  -6.634  -6.606  -6.577  -6.548  -6.519  -6.489  
 TIME = 12 hours since 2016-10-03 12:00:00 +00:00
 -6.855  -6.828  -6.801  -6.774  -6.747  -6.719  -6.691  -6.663  -6.634  -6.606  -6.577  -6.548  -6.519  -6.489

So, mainly want to change the TIME by 6 hourly intervals. Can anyone kindly help me with this?

Thanks.

2

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1 Like