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Old 12-16-2005
PradeepRed PradeepRed is offline
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Join Date: Dec 2005
Posts: 25
Removing lines from a file
Hello

i have 2 files file1 and file2 as shown below

file1
110010000000206|567810008161509
110010000000207|567810072227627
110010000000208|567811368851555
110010000000209|567811422513652
110010000000210|567812130217683
110010000000211|567813220211182
110010000000212|567813449322589
110010000000213|567813741319623
110010000000214|567816323171591
110010000000215|567816660521463
110010000000216|567818208711973
110010000000217|567819516604228
110010000000218|567819540685909
110010000000219|567820748714137
110010000000220|567821948536668
110010000000221|567822556413253

file2

110010000000206
110010000000210
110010000000211
110010000000214
110010000000217
110010000000221

Now i want a third file obtained from file1 which will not have the entries from file2.

ie

110010000000207|567810072227627
110010000000208|567811368851555
110010000000209|567811422513652
110010000000212|567813449322589
110010000000213|567813741319623
110010000000215|567816660521463
110010000000216|567818208711973
110010000000218|567819540685909
110010000000219|567820748714137
110010000000220|567821948536668

Now my problem is that file1 has 10 million entries and file2 has half a million entries. So grep -v option is out. Pls suggest an easy way out.

I seem to get stuck with problems working with big files.

Regards
Pradeep
 

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