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# 1  
Old 10-21-2009
grep using file

hello all

occasional shell user here

I have a small versions of the command i want to use here
Code:
ls -R | grep -v "100041" | grep -v "100042" | grep -v "100043"

and this gives me what I want except what I really want to do is provide the numbers from a text file that would just list the numbers like so

100041
100042
100043

is this possible ?

Mean Mike
# 2  
Old 10-21-2009
Hi.

Try grep -vf filename

Check the grep man page

Code:
$ cat x
100040
100044
100045
$ cat y
100040
100041
100042
100043
100044
100045
$ grep -vf x y
100041
100042
100043

So the file contains what you want to avoid finding, then

Code:
ls -R | grep -vf filename


Last edited by Scott; 10-21-2009 at 02:44 PM..
# 3  
Old 10-21-2009
Code:
ls -R | grep -vFf infile

# 4  
Old 10-21-2009
yes I'm sorry I should have looked at grep man that should work thanks !
 

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