06-20-2008
Merging columns
Hi, I have input file.
File1:
Seqno Name
124 name1
121 name2
123 name3
122 name4
We will send the file1 to some other team. They will replace name column with place in file1 and send back to us as file2.
file2:
Seqno Place
124 place1
121 place2
123 place3file2:
And then we will replace the name with place based on row-id and output file should only contain the row-id and place as shown below.
Output:
File1:
Row-id Place
121 place2
122
123 place3
124 place1
Please help me how to do it. Thanks in advance.
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LEARN ABOUT OPENDARWIN
comm
COMM(1) BSD General Commands Manual COMM(1)
NAME
comm -- select or reject lines common to two files
SYNOPSIS
comm [-123i] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which should be sorted lexically, and produces three text columns as output: lines only in file1;
lines only in file2; and lines in both files.
The filename ``-'' means the standard input.
The following options are available:
-1 Suppress printing of column 1.
-2 Suppress printing of column 2.
-3 Suppress printing of column 3.
-i Case insensitive comparison of lines.
Each column will have a number of tab characters prepended to it equal to the number of lower numbered columns that are being printed. For
example, if column number two is being suppressed, lines printed in column number one will not have any tabs preceding them, and lines
printed in column number three will have one.
The comm utility assumes that the files are lexically sorted; all characters participate in line comparisons.
DIAGNOSTICS
The comm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
cmp(1), diff(1), sort(1), uniq(1)
STANDARDS
The comm utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
HISTORY
A comm command appeared in Version 4 AT&T UNIX.
BSD
June 6, 1993 BSD