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Select the exact matching contents using grep


 
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# 1  
Old 06-08-2011
Bug Select the exact matching contents using grep

Hi everyone I've two files..
The contents of file1 are as shown below

Code:
4
5
12
13
36
37
45
46
47

The contents of file2 are as shown below

Code:
21 hello
13 world
4 Hi
36 how
44 are
5 you
56 ?

If I use

Code:
grep -f file1 file2

I get the following output


Code:
13 world
4 Hi
44 are
5 you
56 ?

I want output as shown below

Code:
13 world
4 Hi
5 you

I've to match the exact line number at the beginning of the line!!
How can I do it??
I need to write a shell script for that..
# 2  
Old 06-08-2011
try this...
Code:
grep -Fw file1 file2

# 3  
Old 06-08-2011
Code:
awk 'FNR==NR{a[$1]=1} NR>FNR{if($1 in a)print $0}' f1 f2

# 4  
Old 06-08-2011
Code:
nawk 'FNR==NR{f1[$0];next} $1 in f1' file1 file2

# 5  
Old 06-08-2011
thanks for the reply
but am not getting any output by using grep -Fw command..Smilie

---------- Post updated at 02:49 PM ---------- Previous update was at 02:42 PM ----------

thank u..its working using awk command..Smilie
# 6  
Old 06-08-2011
Using solaris you can try this syntax hope this should work...
Code:
/usr/xpg4/bin/grep  -w -f file1 file2

Thanks
Sha

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