Replace string Linux/Unix Script Monitor

jwfiallos

Hello,

I have one file in a path that contains a string like 12:34:56, like a hhmmss format.

I need only the first four digits, i use a substring and obtain 12:34, but a need delete the ":" and get "1234" for use like a statistic.

I have this:

1- The path with 12:34:56

2- the substr to get 12:34

i try with

replace="${substring//:}", but i get the follow error:

thanks for your help.

noeltz

<span class="pln">Try...<br /><br />echo </span><span class="str">"$substring"</span><span class="pln"> </span><span class="pun">|</span><span class="pln"> tr </span><span class="pun">-</span><span class="pln">cd </span><span class="pun">[:</span><span class="pln">digit</span><span class="pun">:]</span>

That would return only digits, no matter what other characters are present