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Full Discussion: Awk: split and gensub query
Top Forums UNIX for Beginners Questions & Answers Awk: split and gensub query Post 303037760 by mrcool4 on Tuesday 13th of August 2019 04:05:13 AM
Old 08-13-2019
Awk: split and gensub query

Hi All,

Thanks for answering my previous question. Could you please explain the highlighted code?

Code:
awk -v pos='9 27 39 54 59 64 71 78 83 103 108' 'BEGIN{split(pos,var)} {for (i in var) $0=gensub(/./,"|",var[i])} 1' test.txt | head

I understood that the split function splits the pos string into an array but I am confused on the usage of gensub function, especially var[i]. It wold be helpful if there is any tool which I use to visualize the steps.

Thanks,
Mc

Last edited by mrcool4; 08-13-2019 at 05:09 AM.. Reason: Added more info
 

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WDDX_SERIALIZE_VARS(3)							 1						    WDDX_SERIALIZE_VARS(3)

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string wddx_serialize_vars (mixed $var_name, [mixed $...]) DESCRIPTION
Creates a WDDX packet with a structure that contains the serialized representation of the passed variables. PARAMETERS
This function takes a variable number of parameters. o $var_name - Can be either a string naming a variable or an array containing strings naming the variables or another array, etc. o $... - RETURN VALUES
Returns the WDDX packet, or FALSE on error. EXAMPLES
Example #1 wddx_serialize_vars(3) example <?php $a = 1; $b = 5.5; $c = array("blue", "orange", "violet"); $d = "colors"; $clvars = array("c", "d"); echo wddx_serialize_vars("a", "b", $clvars); ?> The above example will output: <wddxPacket version='1.0'><header/><data><struct><var name='a'><number>1</number></var> <var name='b'><number>5.5</number></var><var name='c'><array length='3'> <string>blue</string><string>orange</string><string>violet</string></array></var> <var name='d'><string>colors</string></var></struct></data></wddxPacket> PHP Documentation Group WDDX_SERIALIZE_VARS(3)
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