[ncl-talk] Help: how to just read out one line from a big ascii file?
Xiaofeng Li
Xiaofeng.Li at newcastle.ac.uk
Tue Feb 28 04:29:42 MST 2017
Dear All,
I’m quite confusing how to just read out one or two lines from a big ascii file. Read in all the data into one array and then chose one line from the array seems not working in my current condition.
For example, how can I just read the second line of the ascii file “asc4.txt”(attached behind) as “string” without loading in all the data into memory first:
The 15 most populous nations
Data taken from Wikipedia, October 2008
----------------------------------------------------------------------
Country Population (millions) Percentage (of world)
China 1,321 19.84%
India 1,132 16.96%
United States 304 4.56%
Indonesia 232 3.47%
Brazil 187 2.80%
Pakistan 163 2.44%
Bangladesh 159 2.38%
Nigeria 148 2.22%
Russia 142 2.13%
Japan 128 1.92%
Mexico 107 1.60%
Philippines 89 1.33%
Vietnam 84 1.31%
Germany 82 1.23%
Egypt 81 1.13%
----------------------------------------------------------------------
Total 4,356 65.32%
Any help is appreciated.
Best Regards,
Xiao
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