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Full Discussion: Splitting up a text file into multiple files by columns
Top Forums UNIX for Dummies Questions & Answers Splitting up a text file into multiple files by columns Post 302719005 by agama on Sunday 21st of October 2012 10:42:32 PM
Old 10-21-2012
Assuming your system will allow 100 concurrent file descriptors to be open at the same time:

Code:
awk '
    {
        for( i = 3; i <= NF; i++ )
            printf( "%s %s %s\n", $1, $2, $(i) ) >i ".txt";
    }
' input-file

Should work.


Per your description 3.txt will contain columns 1,2 and 3; 4.txt will contain 1,2 and 4. There will not be 1.txt nor 2.txt as you indicated you want n.txt where n is the column in addition to 1 and 2. I hope I interpreted that correctly.

---------- Post updated at 22:42 ---------- Previous update was at 22:39 ----------

If your system will not allow 100 concurrently open FDs, then the code below should work -- not as efficient, and you will need to delete all text files if you need to rerun the programme.


Code:
awk '
    {
        for( i = 3; i <= NF; i++ )
        {
            fn = i ".txt";
            printf( "%s %s %s\n", $1, $2, $(i) ) >>fn;
            close( fn );
        }
    }
' input-file

Last edited by agama; 10-21-2012 at 11:46 PM.. Reason: typo
This User Gave Thanks to agama For This Post:
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LEARN ABOUT DEBIAN

ecaccess-file-move

ECACCESS-FILE-MOVE(1p)					User Contributed Perl Documentation				    ECACCESS-FILE-MOVE(1p)

NAME

       ecaccess-file-move - Move or Rename ECaccess Files

SYNOPSIS

       ecaccess-file-move -version|-help|-manual

       ecaccess-file-move [-debug] source-ecaccess-file target-ecaccess-file

DESCRIPTION

       Allow moving an ECaccess File. When the move occurs within the same ECaccess File System then it is a rename. When the move occurs across
       two different ECaccess File Systems then first a copy is done and then a delete of the original file is done (e.g. similar to ecaccess-
       file-copy ... -erase).

       The source-ecaccess-file and target-ecaccess-file are in the form [domain:][/user-id/]path. Please read the "Shell commands -> File
       Management" section of the "ecaccess" guide for more information on the ECaccess File System.

ARGUMENTS

       source-ecaccess-file
	       The source ECaccess File name.

       target-ecaccess-file
	       The target ECaccess File name.

OPTIONS

       -version
	       Display version number and exits.

       -help   Print a brief help message and exits.

       -manual Prints the manual page and exits.

       -debug  Display the SOAP messages exchanged.

EXAMPLES

       ecaccess-file-move ec:test1.txt ec:test2.txt

       Rename the test1.txt file in the ECFS directory of the authenticated user in test2.txt.

       ecaccess-file-move ec:test1.txt home:test2.txt

       Copy the test1.txt file from the ECFS directory of the authenticated user to the test2.txt file in the $HOME directory of the authenticated
       user, then delete the test1.txt file from ECFS.

SEE ALSO

       ecaccess-file-delete, ecaccess-file-get, ecaccess-file-mget, ecaccess-file-modtime, ecaccess-file-mput, ecaccess-file-rmdir, ecaccess-file-
       copy, ecaccess-file-dir, ecaccess-file-mdelete, ecaccess-file-mkdir, ecaccess-file-chmod, ecaccess-file-put, ecaccess-file-size and
       ecaccess.

perl v5.14.2							    2012-04-16						    ECACCESS-FILE-MOVE(1p)
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