09-18-2015
Duplicate post... continue
here.
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i have a file with some 1000 entries it will contain entries like
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1001,rahim
1000,ram
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2000,pankaj
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2532,govind
what i want is i want to extract only the distinct rows from this file
so my output should contain only
1000,ram... (2 Replies)
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I have data like this:
It's sorted by the 2nd field (TID).
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I need some help.
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Hi Experts,
Please check the following new requirement. I got data like the following in a file.
FILE_HEADER
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Hi,
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Hi all,
I am working with a huge amount of files in a Linux environment and I was trying to filter my data. Here's what my data looks like
Name............................Size
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I have been using grep to output whole lines using a pattern file with identifiers (fileA):
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fig|562.2322.peg.3
fig|562.2322.peg.3
fig|562.2322.peg.3
fig|562.2322.peg.7
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i hav two files like
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LEARN ABOUT DEBIAN
combine
COMBINE(1) COMBINE(1)
NAME
combine - combine sets of lines from two files using boolean operations
SYNOPSIS
combine file1 and file2
combine file1 not file2
combine file1 or file2
combine file1 xor file2
_ file1 and file2 _
_ file1 not file2 _
_ file1 or file2 _
_ file1 xor file2 _
DESCRIPTION
combine combines the lines in two files. Depending on the boolean operation specified, the contents will be combined in different ways:
and Outputs lines that are in file1 if they are also present in file2.
not Outputs lines that are in file1 but not in file2.
or Outputs lines that are in file1 or file2.
xor Outputs lines that are in either file1 or file2, but not in both files.
"-" can be specified for either file to read stdin for that file.
The input files need not be sorted, and the lines are output in the order they occur in file1 (followed by the order they occur in file2
for the two "or" operations). Bear in mind that this means that the operations are not commutative; "a and b" will not necessarily be the
same as "b and a". To obtain commutative behavior sort and uniq the result.
Note that this program can be installed as "_" to allow for the syntactic sugar shown in the latter half of the synopsis (similar to the
test/[ command). It is not currently installed as "_" by default, but you can alias it to that if you like.
SEE ALSO
join(1)
AUTHOR
Copyright 2006 by Joey Hess <joey@kitenet.net>
Licensed under the GNU GPL.
moreutils 2012-04-09 COMBINE(1)