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Top Forums Shell Programming and Scripting Combine multiple lines in file based on specific field Post 302669743 by ratheesh2011 on Wednesday 11th of July 2012 09:27:18 AM
Old 07-11-2012
Combine multiple lines in file based on specific field

Hi,

I have an issue to combine multiple lines of a file. I have records as below.
Fields are delimited by TAB. Each lines are ending with a new line char (\n)

Input
--------
Code:
ABC 123456 abcde 987
890456 7890 xyz
ght gtuv 
ABC 5tyin 1234 789
ghty kuio
ABC ghty jind 1234 
678 ght

I have to combine these lines based on first field. Whenever ABC comes a first field it should a new line. Delimiter should be retained as TAB.

My output should be
--------------------

Code:
ABC 123456 abcde 987 890456 7890 xyz ght gtuv
ABC 5tyin 1234 789 ghty kuio
ABC ghty jind 1234 678 ght

Please help me to resolve this.

Thanks,
Ratheesh

Moderator's Comments:
Mod Comment Please use code tags next time for your code and data.
 

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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)
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