Shell Programming and Scripting

Dear friend,

I have a file 2 files with column wise

FILE_A
------------------------------

Code:

x,1,@
y,3,$
x,5,%

FILE_B
--------------------

Code:

x,1,@

i like to delete the all lines in FILE_A ,if first column available in FILE_B.

output (in FILE_A)

Code:

y,3,$
x,5,%

quick reply must be appriciated.

Thanks,
Jewel

Please use code tags for code and data as required by forum rules!

Your problem is such a common one that it has been discussed and solved umpteen times in these fora. Do an advanced search here, prepare a solution, and if that doesn't work as you need it, come back to discuss. We'll be here to help.

BTW, your specification does not fit your sample in-/output. Pls be more careful when phrasing either!

Try like ..

Code:

 grep -vf a.txt b.txt

hi friend,

can you please look into this.

regards,
Jewel

The previous reply had the right idea:

Code:

$ cat FILE_A
x,1,@
y,3,$
x,5,%

$ cat FILE_B
x,1,@

$ grep -v -f FILE_B FILE_A
y,3,$
x,5,%

Have u tried what i posted? facing any issue?

I thought I had tried what you posted. I guess I must have missed something.