LinuxQuestions.org - Help with sorting a file

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Help with sorting a file

Hi there,

I would like to ask how I could sort this nam input file;

Code:

+ 2.47 4 3 cbr 500 ------- 3 4.0 1.1 294 989

+ 2.47 1 2 cbr 500 ------- 2 1.0 5.0 394 990

+ 2.47 2 3 cbr 500 ------- 2 1.0 5.0 313 828

+ 2.471 3 2 cbr 500 ------- 3 4.0 1.1 292 985

+ 2.472 3 5 cbr 500 ------- 1 0.0 5.0 233 600

so that the output file is in ascending order by last column "989", "990" etc

Code:

+ 2.472 3 5 cbr 500 ------- 1 0.0 5.0 233 600

+ 2.47 2 3 cbr 500 ------- 2 1.0 5.0 313 828

+ 2.471 3 2 cbr 500 ------- 3 4.0 1.1 292 985

+ 2.47 4 3 cbr 500 ------- 3 4.0 1.1 294 989

+ 2.47 1 2 cbr 500 ------- 2 1.0 5.0 394 990

Thanks in advance for your input.

Yogiz

Use sort(1) utility

If the number of columns is fixed, e.g. each rows have always 12 fields, you can use sort with option -k to specify the position of the field to be sorted:

Code:

sort -n -k 12 input_file

Awsome thanks for that.

How would I go on about then extracting just the first column into a new file?

Awsome thanks for that.

How would I go on about then extracting just the second column into a new file?
For example;

2.472
2.47
2.471
2.47
2.47

Got it used

awk '{print $2}' filename > output

Love Linux