file processing -- remove the first column of each line

[George2]

Hello everyone,


I have a text file with a lot of lines, and in each line, there are several columns divided by space character, but the number of columns in each line varies. For example, here is a sample,

--------------------
abc 123 234 456
bsc 3 5 7 9 10 123
yyt 23
--------------------

I want to get a new file based on the existing file, by removing the first column, here is the related output of above sample,

--------------------
123 234 456
3 5 7 9 10 123
23
--------------------

Currently, my program runs on Linux, I am using awk command in my C/C++ program, to print from $2 to $100 by removing the first column of each line (I assume that the number of columns does not exceed 100).

I think my method is somewhat stupid. Does anyone have better ideas of how to utilize awk or sed or some other utility in my C/C++ program to do the same thing?


thanks in advance,
George

[kris.c]

It can be done using the cut command too.
use the -d option to specify the delimiter , blank in your case and the -f option to specify which field you wish to cut

[Salem]

> I am using awk command in my C/C++ program,
Why do I get the feeling all your C (or C++) programs are little more than lots of calls to system()?