Re: [SLE] Truncating Strings

Rene Engelhard wrote:

Alexandr Malusek wrote:

...

Jon Pennington writes:

...

Later on, I'll add the necessary header information, but for now, I need to strip the extra RPM version data from the file. It has a list of RPMs like this:

WindowMaker-0.64.0-63 a2ps-4.13-74 aaa_base-2001.5.22-0

But I need a list like this:

WindowMaker a2ps aaa_base

So I need a quick and dirty way to strip every line of every "-[0,9]*" and keep the rest of the name intact. It's a bit tricker since some packages don't use underscores but hyphens to seperate parts of the package name, such as alsa-devel, which means you can't just strip everything past the first hypen. Whaddayathink?

Basically, you can do it like this:

#!/bin/bash

rpm -qa | sort | while read name_ver_rev; do name_ver=${name_ver_rev%-*} name=${name_ver%-*} echo $name done

But I don't understand why you just don't print the names:

$ rpm -qa --queryformat "%{NAME}\n" | sort

That`s good. I had this problem a longer time ago, too and I did the following

rpm -qa | cut -d"-" -f1 | sort

But I did not know rpm has an option for this.

So I learned now....

I forgot grep | after rpm -qa |, but it does not work for your interest because of alsa-devel..... I had not read properly.... :-( Rene