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02-27-2009
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problem with using comm
hi,
I have two unsorted files and want to delete the lines which are common to both. file 1: S1069656304010437 S1069656304010449 S1470204501005393 S1069656304010474 S0001209208001294 S0000000012345678 S0001457507000590 S0002641707000784 S1470204501005381 S0001457507000280 S147020450100540X S1069656304010450 file 2: S1069656304010437 S1069656304010449 S1069656304010474 S1069656304010450 code : comm -23 file1 file2 results in S1470204501005393 S1069656304010474 S0001209208001294 S0000000012345678 S0001457507000590 S0002641707000784 S1470204501005381 S0001457507000280 S147020450100540X S1069656304010450 But still two lines that are common are not removed. S1069656304010474 S1069656304010450 Can ne one help me how to remove all the lines that are common to both? i am using tcsh |
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02-27-2009
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yeah i can sort and then use it.
As i will be using the comm frequently. i need to sort many of such files which has to be comm 'ed later. which creates many temp files. Ne other method that can delete lines that are common in two files?? |
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02-27-2009
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Something like this??? Code:
$ cat file200 S1069656304010437 S1069656304010449 S1470204501005393 S1069656304010474 S0001209208001294 S0000000012345678 S0001457507000590 S0002641707000784 S1470204501005381 S0001457507000280 S147020450100540X S1069656304010450 $ cat file400 S1069656304010437 S1069656304010449 S1069656304010474 S1069656304010450 Code:
$ diff file200 file400 | grep "<" | sed 's/<//g' S1470204501005393 S0001209208001294 S0000000012345678 S0001457507000590 S0002641707000784 S1470204501005381 S0001457507000280 S147020450100540X |
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02-27-2009
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To remove spaces at the beginning.... Code:
$ diff file200 file400 | grep "<" | sed 's/<//g' | cut -c 2- S1470204501005393 S0001209208001294 S0000000012345678 S0001457507000590 S0002641707000784 S1470204501005381 S0001457507000280 S147020450100540X |
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