Find/Change long text

aungomarin · #1 (**permalink**) 07-10-2006

If I have very large text file

***************
***************
***************
***************
***************
ABC-sdfsdf
BBB-xk[ptr';
CCC-sdfolb
ABC-dltg'fl;l

My aim:
-> tail last 10 lines from large text. ***** Ok *****
-> Change first 3 charactors which begin with "ABC" to "abc". ***** ??? ****
Thk very much

aigles · #2 (**permalink**) 07-10-2006

Try this

Code:

tail -10 input_file | sed 's/^ABC/abc/' > output_file

Jean-Pierre.

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