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# 1  
Old 09-05-2012
Debian Comparing two .txt files
i am working on a shell script and need help in the comparing part of it. for e.g. there two text files like this:

file1.txt

Code:
Code:
name1
name2
name3

file1 has to be comared with file2

defaultfile.txt


Code:
Code:
name1
name2
name3 
name4

and during comparision with defaultfile.txt

if file1.txt contains conents of defaultfile, it should echo file authenticated

if file1.txt contains content which is not in defaultfile.txt, and it should echo file not authenticated....

i tried diff command but it doesnt seeem to help me
Last edited by draghun9; 09-05-2012 at 03:07 PM..
# 2  
Old 09-05-2012
Code:
awk 'NR==FNR { A[$1]++; next } !($1 in A) { print "Not Auth"; exit 1 } END { print "Auth" }' defaultfile.txt file1.txt

# 3  
Old 09-05-2012
Thanks corona but Is there anyway i can do the same without the awk command.
# 4  
Old 09-05-2012
What's the problem with using awk?
# 5  
Old 09-05-2012
How about using comm command (assuming files are sorted)? Note that I added name5 to file1.txt to satisfy your "not authenticated" requirement.

Code:
cat file1.txt      
name1
name2
name3
name5
 
cat defaultfile.txt
name1
name2
name3
name4

Code:
comm -12 file1.txt defaultfile.txt | xargs -Ifn echo fn "authenticated"    
 
name1 authenticated
name2 authenticated
name3 authenticated

Code:
comm -23 file1.txt defaultfile.txt | xargs -Ifn echo fn "not authenticated"
 
name5 not authenticated

Code:
comm -13 file1.txt defaultfile.txt | xargs -Ifn echo fn "whateveryouwant"
 
name4 whateveryouwant

# 6  
Old 09-05-2012
Quote:
Originally Posted by draghun9
Thanks corona but Is there anyway i can do the same without the awk command.
Why must awk be avoided? I tried using comm, but that a) needs to be sorted, and b) ended up wanting awk anyway to test the properties of the output...
# 7  
Old 09-06-2012
Thanks guys for your reply...i see both codes working for me.....@corona..i am a newbie and heard from someone that using awk command doesnt workout right sometimes when we have while and for loops...but for me as of now it works fine without any problem...Smilie
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