How do I remove the first column from a file in Linux?

Explanation:

1. cut : invoke the cut command.
2. -d ” ” : use a single space as the delimiter ( cut uses TAB by default)
3. -f : specify fields to keep.
4. 3- : all the fields starting with field 3.
5. input_filename : use this file as the input.
6. > output_filename : write the output to this file.

6 февр. 2013 г.

How do you cut the first column in Unix?

To show you an example of the cut command with tab delimiter, we need to first change our delimiter from “:” to tab, for that we can use the sed command, which will replace all colon with t or tab character. After that, we can use, and then we will apply the cut command of Linux to extract the first column.