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to compare two files and to print the difference


 
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# 1  
Old 10-05-2007
Bug to compare two files and to print the difference

suppose one file
P1168S
P2150L
P85L
Q597R
R1097C

Another file
P2150L
P85L
Q597R
R1097C
R1379C
R1587K

Then output shud be
R1379C
R1587K

thanks
# 2  
Old 10-05-2007
Quote:
Originally Posted by cdfd123
suppose one file
P1168S
P2150L
P85L
Q597R
R1097C

Another file
P2150L
P85L
Q597R
R1097C
R1379C
R1587K

Then output shud be
R1379C
R1587K

thanks
Why not P1168S - it is not in "another file"
# 3  
Old 10-05-2007
use cmp file1 file2
or
diff file1 file2

what exactly are you looking for?

cheers,
Devaraj Takhellambam
# 4  
Old 10-06-2007
Quote:
Originally Posted by devtakh
use cmp file1 file2
or
diff file1 file2

what exactly are you looking for?

cheers,
Devaraj Takhellambam
yah ....
u have a file1 and file2 then contents not found in file 2 shud be displayed
# 5  
Old 10-06-2007
Use this...Please note that this will work for sorted files

Code:
comm -23 file1 file2

# 6  
Old 10-06-2007
Code:
awk 'BEGIN { while ( getline < "firstfile" ) { arr[$0]++ } } { if (!( $0 in arr ) ) { print } }' secondfile


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