Dear Frwa,
What is the --quiet ?
Regards,
Frwa.
On Tue, Aug 27, 2013 at 12:45 AM, frwa onto <[email protected]> wrote:
> Dear Vpi,
> Yes I know this "rpm -qa | grep -q $pkg" but this part I
> am not sure [ $? -eq 0 ] && echo $pkg is present || echo $pkg is not
> present ?
>
> Regards,
> Frwa.
>
>
> On Tue, Aug 27, 2013 at 12:41 AM, [email protected] <
> [email protected]> wrote:
>
>> On 08/26/2013 06:35 PM, frwa onto wrote:
>> > Dear Vpi,
>> > I tried
>> > pkg=pfring; rpm -qa | grep -q $pkg ; [ $? -eq 0 ] && echo $pkg is
>> present || echo $pkg is not present . So this script I can just put pfring
>> right ? Ok first the rpm -qa | grep -q $pkg . What is [ $? -eq 0 ] doing ?
>> What is the difference with the next script? Thank you.
>> >
>>
>> frwa,
>>
>> the command "rpm -qa | grep -q $pkg" is just the standard way to look for
>> a rpm pkg in a rpm based distro; for more see the rpm command manual ;)
>>
>> about the bash exit status see this:
>> http://tldp.org/LDP/abs/html/exit-status.html
>>
>> ciao
>> -v
>>
>> > Regards,
>> > Frwa.
>> >
>> >
>> > On Tue, Aug 27, 2013 at 12:20 AM, [email protected] <mailto:
>> [email protected]> <[email protected] <mailto:[email protected]>>
>> wrote:
>> >
>> > On 08/26/2013 06:06 PM, frwa onto wrote:
>> > > Dear Vpi,
>> > > I tried this pkg=pfring; rpm -qa | grep -q $pkg ; [
>> $? -eq 0 ] && echo ok, $pkg removed || echo $pkg
>> > > and gave me this pfring
>> >
>> > yes you;re right, since the pfring package is not installed
>> anymore, the $? == 1 and then the if statement takes the || clausole
>> > so I believe the pfring is already uninstalled.
>> >
>> > for the record, if you want to check if a pkg is present (or not)
>> use something like this:
>> >
>> > pkg=pkg_name; rpm -qa | grep -q $pkg ; [ $? -eq 0 ] && echo $pkg is
>> present || echo $pkg is not present
>> >
>> > or even simpler
>> >
>> > pkg=pkg_name; rpm --quiet -q $pkg ; [ $? -eq 0 ] && echo $pkg is
>> present || echo $pkg is not present
>> > (this will work but you have to use the exact name of the package,
>> so I usually prefer the former)
>> >
>> > I know this is a lot convolute, but it could be used in a script ;)
>> >
>> > ciao
>> > -v
>> >
>> > >
>> > > Regards,
>> > > Frwa.
>> > >
>> > >
>> > > On Mon, Aug 26, 2013 at 11:59 PM, [email protected] <mailto:
>> [email protected]> <mailto:[email protected] <mailto:
>> [email protected]>> <[email protected] <mailto:[email protected]>
>> <mailto:[email protected] <mailto:[email protected]>>> wrote:
>> > >
>> > > On 08/26/2013 05:45 PM, frwa onto wrote:
>> > > > Dear Vpi,
>> > > > This command is not showing anything rpm -ev
>> $(rpm -qa | grep pfring) ?
>> > >
>> > > In case of success it wont produces any messages; if you want
>> more verbosity use something like this:
>> > >
>> > > rpm -evH $(....
>> > >
>> > > -btw: you can test the bash exit status from the previous
>> command, see [1]
>> > >
>> > > for example
>> > >
>> > > pkg=pfring; rpm -qa | grep -q $pkg ; [ $? -eq 0 ] && echo ok,
>> $pkg removed || echo $pkg not found, perhaps already removed?
>> > >
>> > > ciao
>> > > vito
>> > >
>> > >
>> > > [1] http://tldp.org/LDP/abs/html/exit-status.html
>> > >
>> > > >
>> > > > Regards,
>> > > > Frwa.
>> > > >
>> > > >
>> > > > On Mon, Aug 26, 2013 at 11:41 PM, [email protected]<mailto:
>> [email protected]> <mailto:[email protected] <mailto:
>> [email protected]>> <mailto:[email protected] <mailto:
>> [email protected]> <mailto:[email protected] <mailto:
>> [email protected]>>> <[email protected] <mailto:
>> [email protected]> <mailto:[email protected] <mailto:
>> [email protected]>> <mailto:[email protected] <mailto:
>> [email protected]> <mailto:[email protected] <mailto:
>> [email protected]>>>> wrote:
>> > > >
>> > > > Dear frwa,
>> > > >
>> > > > I think you've installed the pf_ring rpm without using
>> yum, so just type:
>> > > >
>> > > > rpm -ev $(rpm -qa | grep pfring)
>> > > >
>> > > > regards
>> > > > -v
>> > > >
>> > > > On 08/26/2013 05:32 PM, frwa onto wrote:
>> > > > > Dear All,
>> > > > > I have installed pf_ring using the yum
>> method previously. Now I want to remove it so I ran and got this.
>> > > > >
>> > > > > yum remove pfring* -y
>> > > > > Loaded plugins: fastestmirror, security
>> > > > > Setting up Remove Process
>> > > > > No Match for argument: pfring-5.5.3-6016.x86_64.rpm
>> > > > > Loading mirror speeds from cached hostfile
>> > > > > * base: centos.mirror.iweb.ca <
>> http://centos.mirror.iweb.ca> <http://centos.mirror.iweb.ca> <
>> http://centos.mirror.iweb.ca> <http://centos.mirror.iweb.ca>
>> > > > > * extras: centos.mirror.iweb.ca <
>> http://centos.mirror.iweb.ca> <http://centos.mirror.iweb.ca> <
>> http://centos.mirror.iweb.ca> <http://centos.mirror.iweb.ca>
>> > > > > * updates: centos.mirror.iweb.ca <
>> http://centos.mirror.iweb.ca> <http://centos.mirror.iweb.ca> <
>> http://centos.mirror.iweb.ca> <http://centos.mirror.iweb.ca>
>> > > > > No Packages marked for removal
>> > > > >
>> > > > > How to resolve this cause my pf_ring is still there?
>> I want to install it from source now cause too many issue with the .rpm
>> version.
>> > > > >
>> > > > >
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