I have seen many examples using awk command but I wanted to try if this can be done using split command.
For example my file looks like this
Input file
col1 col2 col3
1 Rahul IT
2 Askhay CS
3 Teju IT
8 Riyansh CO
1 Rahul IT
2 Askhay CS
expected file
Output--File1
Col1 col2 col3
1 Rahul IT
1 Rahul IT
Output File2
Col1 col2 col3
2 Askhay CS
2 Askhay CS
Output file3
Col1 col2 col3
3 Teju IT
Earlier I have used split -d splitrange filename.txt but this command randomly splits files based on splitrange given for eg if it is set to 3 so 3 files will be created with different values but I wanted as per above
No. Read the split manual page. split splits a file based on size or number of lines, not based on a pattern.