How to append values to a string?

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How to append values to a string?

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04-19-2013

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How to append values to a string?

Hi,

Requesting some help with a problem I am facing with string function in UNIX. I wish to create 2 string variables: 1st header string containing output_1, output_2, .. , output_<n> and 2nd data string containing the filename separated by colon (":") and corresponding filesize separated by comma as shown below
E.g.

Code:

output_1,output_2,output_3,
file1:303,file2:304:file3:443

I have written the following piece of code to perform the same, but I am not getting the values of the variables appended to my string variables header_str and output_str? Can you please advise how can i get the two string variables as shown below:

Code:

header_str=output_1,output_2,output_3,
output_str=file1:303,file2:304:file3:443,

Code:

        set -x;
        typeset -L header_str; typeset -L output_str;
        typeset -i op_cnt=1;
        ls -lrt <dirname>|awk '{FS = ",|[ \t]+"} NR>1 { print $9, $5 }'|tr " " ":"|while read line
        do
          header_str=$(echo $header_str,output_file$op_cnt)
          output_str=$(echo $output_str,$line)
          op_cnt=`expr $op_cnt + 1`
        done

        echo  header_str is $header_str;
        echo output_str is $output_str;

Last edited by Scrutinizer; 04-19-2013 at 04:56 PM.. Reason: extra code tags

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