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Top Forums Shell Programming and Scripting shell script to join multiple files Post 302310545 by devtakh on Saturday 25th of April 2009 02:04:18 PM
Old 04-25-2009
Quote:
Originally Posted by bonosungho
I am a new to Linux and try to write a script to join three multiple files.

For example, there are three files

file1
# comment
a Kevin
b Vin
c Sam

file 2
# comment
a 10
b 20
c 40

file 3
# comment
a blue
b yellow
c red




I am trying to ignore the line starting with #, and join only three lines. but because of the comment I cannot use join function.
Can anybody help me??

try this :

$ awk '$0 !~ /#/{arr[$1]=arr[$1] " " $2}END{for(i in arr)print i,arr[i]}' file1
file2 file3 | tr -s ' '


cheers,
Devaraj Takhellambam
 

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COLLATOR_ASORT(3)							 1							 COLLATOR_ASORT(3)

Collator::asort - Sort array maintaining index association

       Object oriented style

SYNOPSIS
public bool Collator::asort (array &$arr, [int $sort_flag]) DESCRIPTION
Procedural style bool collator_asort (Collator $coll, array &$arr, [int $sort_flag]) This function sorts an array such that array indices maintain their correlation with the array elements they are associated with. This is used mainly when sorting associative arrays where the actual element order is significant. Array elements will have sort order according to current locale rules. Equivalent to standard PHP asort(3). PARAMETERS
o $coll -Collator object. o $arr -Array of strings to sort. o $sort_flag - Optional sorting type, one of the following: o Collator::SORT_REGULAR - compare items normally (don't change types) o Collator::SORT_NUMERIC - compare items numerically o Collator::SORT_STRING - compare items as strings Default $sort_flag value is Collator::SORT_REGULAR. It is also used if an invalid $sort_flag value has been specified. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 collator_asort(3)example <?php $coll = collator_create( 'en_US' ); $arr = array( 'a' => '100', 'b' => '50', 'c' => '7' ); collator_asort( $coll, $arr, Collator::SORT_NUMERIC ); var_export( $arr ); collator_asort( $coll, $arr, Collator::SORT_STRING ); var_export( $arr ); ?> The above example will output: array ( 'c' => '7', 'b' => '50', 'a' => '100', )array ( 'a' => '100', 'b' => '50', 'c' => '7', ) SEE ALSO
Collator constants, collator_sort(3), collator_sort_with_sort_keys(3). PHP Documentation Group COLLATOR_ASORT(3)
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