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Full Discussion: Decoding a string
Top Forums UNIX for Dummies Questions & Answers Decoding a string Post 302608941 by balajesuri on Monday 19th of March 2012 03:38:08 AM
Old 03-19-2012
Your code takes 0.02s on my machine!! I'm working on a server having 6 quad core cpu's each clocking 2.4 GHz and running on RHEL.

Try this. I don't claim it to be the most efficient. But still give it a try:

Code:
#! /bin/bash

len=$(($(echo $1 | wc -c) - 1))
a=$1
for ((i=0; i<=$len; i++))
do
    ch=${a:$i:1}
    if [[ "${ch}" =~ [0-9] ]]
    then
        times=$ch
    else
        for ((j=1; j<=$times; j++))
        do
            echo -e "$ch\c"
        done
    fi
done

Code:
# ./test.sh 3a4b3x3e
aaabbbbxxxeee

This User Gave Thanks to balajesuri For This Post:
 

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