Question

3

rated 0 times [ 3] [ 0] / answers: 1 / hits: 402 / 3 Years ago, thu, may 27, 2021, 12:41:32

Suppose that I have an output of lines like this:

First name, Last name, 123456789(9 digits)

GPA

Class

Major

University

How can I write some code to print the first 3 lines and only keep the ID number in the first line?

I tried to use head, grep and cut, but I wasn't able to do it.

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answered 3 Years ago termetalli · Accepted Answer

You could use awk, to print the last comma-space separated field:

$ cat file

First name, Last name, 123456789

GPA

Class

Major

University



$ awk -F', ' 'NR<4 {print $NF}' file

123456789

GPA

Class

or sed to replace the longest string up to comma-space:

$ sed -n '1,3{s/.*, //; p}' file

123456789

GPA

Class