Compare two text files and Only show the differences


 
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# 1  
Old 11-19-2009
Compare two text files and Only show the differences

Hi experts,
I'mvery new to shell scripting and learning it now

currently i am having a problem which may look easy to u Smilie

i have two files
File 1:
Start :Thu Nov 19 10:33:09 2009
ABCDGFSDJ.txt
APDemoNew.ppt
APDemoOutline.doc
ARDemoNew.ppt
ARDemoOutline.doc

File 2:
Start :Thu Nov 19 10:33:20 2009
ABCDGFSDJ.txt
APDemoNew.ppt
ARDemoNew.ppt
ARDemoOutline.doc

i should find the difference in file 2 compare to file 1
If any file missing, shell script should indicate the the missed file and write it in another text file(ex error.txt)
shell script should not compare the first line (date) for both test file(file1 and file2)

for example the output should be like in Error.txt
File missing :
APDemoOutline.doc

i would really appreciate if anyone can help me..
# 2  
Old 11-19-2009
Code:
man diff
man grep ## look at the -f option

# 3  
Old 11-19-2009
use diff. man diff for more info
# 4  
Old 11-19-2009
I tried diff...but fail to get my desired output..
Can someone guide me with it with proper coding as example??
thnks
# 5  
Old 11-19-2009
Quote:
Originally Posted by CelvinSaran
I tried diff...but fail to get my desired output..
Can someone guide me with it with proper coding as example??
thnks
diff file1 file 2 |grep "^<" > error.txt
# 6  
Old 11-19-2009
oh thanks you..
But how to remove the first and also last line from comparing??
# 7  
Old 11-19-2009
Will this help you?

Code:
$sdiff a b | grep '<' > Error.txt

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