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  #1 (permalink)  
Old 04-28-2008
mail2sant mail2sant is offline
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redirect after the diff
hi,

i have 2 file of the same kind

file_old and file_new

there are few extra things added in new file

i want to make diff file_old file_new > file_update

( file_update are the new things added as compare to the old file )

i can i make it clearly . bcoz in diff it show all the diff among

could someone please help me in that.
  #2 (permalink)  
Old 04-29-2008
summer_cherry summer_cherry is offline Forum Advisor  
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Location: Beijing China
Posts: 1,092

Code:
comm -13 old new
  #3 (permalink)  
Old 04-29-2008
mail2sant mail2sant is offline
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its now working...
can u please suggest other way
  #4 (permalink)  
Old 04-29-2008
danmero danmero is online now Forum Advisor  
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Maybe you need only new lines from file_new that don't exist on file_old

Code:
grep -vf file_old file_new
  #5 (permalink)  
Old 04-29-2008
mail2sant mail2sant is offline
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what i am looking is

for eg:

file_old contains

abc1
abc2
abc3
abc4

file_new contains

abc1
abc2
abc3
abc4
abc5
abc6

is if i run the diff

i want

abc5
abc6
to be displayed
  #6 (permalink)  
Old 04-30-2008
gnom gnom is offline
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try this

diff old new | awk '{print $2}'

cheers
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