CODEWITHSUNDEEP
sedawkgrepcsh
skelter15
skelter15

Reputation: 3

How to read the first (and only) line of a file, split it into separate strings and append it to variables using csh?

I need some help with the following problem. I just can't figure it out (and yes I did the googlework etc).

Using csh I need to read one line from a file (there is only 1 line in the file), split it into separate strings (!not every value is separated with a space, however they do have a fixed position (always in the 3rd and 4th field)) and assign two of them to two separate variables in long format (so no E+04). The two values of interest are:

82390.43500000000 
 and
4.167000000000000
 (so without the 'Earth' attached to it).

They need to be assigned to respectively time and time_step.

The inputfile temp.txt looks like:

000520000001  260026 8.239043500000000E+04 4.167000000000000E+00Earth Centred Rotating                                          -9.999999999999998E+03-9999999.9999999-9999999.9999999-9999999.9999999

There are multiple files called temp.txt, however placed in different folders. The only part that stays constant in all files is Earth Centred Rotating.

What is the best way to do this (awk/grep/sed/?)?

Thanks!

Upvotes: 0

Views: 221

Answers (1)

Sidharth C. Nadhan
Sidharth C. Nadhan

Reputation: 2253

awk '{sub(/E.*/,"",$3); print$3}' temp.txt

and

awk '{sub(/E.*/,"",$4); print$4}' temp.txt

gives 82390.43500000000 and 4.167000000000000 respectively which can then be assigned to your variables.

Upvotes: 1

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