How to assign a value to a variable in awk scripting? Post: 303038187

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Top Forums UNIX for Beginners Questions & Answers How to assign a value to a variable in awk scripting? Post 303038187 by bhagya123 on Tuesday 27th of August 2019 02:33:30 PM

08-27-2019

Registered User

Thanks..Actually i tried with substr and it was working..

Later i encountered an error and thought that is related to to the substr function. But looks like it caused by something else.

Thanks for the response !!

--- Post updated at 07:33 PM ---

Similar to that I am also trying an awk array and wanted to check if the array value match string "{5:{" , replace with 5: and assign it back to same array and print it.

But below code is not working its not able to replace the array value , instead its assigning whole command to msg_arr[i] and printing it

any solution for this?

Code:

              for (i=msgtkn_20_lnno; i<msg_lnno;)
              {
                if(msg_arr[i]  ~ /^{5:{/ )
                {
                tag5_before_value= msg_arr[i];
               msg_arr[i]="echo $tag5_before_value | sed 's/{5:{/5:/g'";
                printf "after conversion is %s/n", abc > "LOG.txt";
               print msg_arr[i++];
               }
                else
                {
                  print msg_arr[i++];
                }

              }

as soon as i use "`" its giving me syntax error

Last edited by Don Cragun; 08-27-2019 at 09:49 PM.. Reason: Add CODE tags, again.

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get_defined_vars

GET_DEFINED_VARS(3)							 1						       GET_DEFINED_VARS(3)

get_defined_vars - Returns an array of all defined variables

SYNOPSIS

       array get_defined_vars (void  )

DESCRIPTION

	This  function	returns  a  multidimensional array containing a list of all defined variables, be them environment, server or user-defined
       variables, within the scope that get_defined_vars(3) is called.

RETURN VALUES

	A multidimensional array with all the variables.

EXAMPLES

       Example #1

	      get_defined_vars(3) Example

	      <?php
	      $b = array(1, 1, 2, 3, 5, 8);

	      $arr = get_defined_vars();

	      // print $b
	      print_r($arr["b"]);

	      /* print path to the PHP interpreter (if used as a CGI)
	       * e.g. /usr/local/bin/php */
	      echo $arr["_"];

	      // print the command-line parameters if any
	      print_r($arr["argv"]);

	      // print all the server vars
	      print_r($arr["_SERVER"]);

	      // print all the available keys for the arrays of variables
	      print_r(array_keys(get_defined_vars()));
	      ?>

SEE ALSO

       isset(3), get_defined_functions(3), get_defined_constants(3).

PHP Documentation Group 												       GET_DEFINED_VARS(3)

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