Can somebody help me? i need to get the available update list on Centos without the header information, and it shoud work on evry Centos version. How can i do that?
PS: I can't use plugins just yum command combined with AWK or anything else
check if
yum check-update -q
or
yum updateinfo -q
matches your requirements. You can use these commands to extract the data you want, like yum check-update -q | cut -d ' ' -f1 to get just a list of the package names with updates.
Related
(Using ubuntu 16 0n my mac pro.)
To integrate gstreamer and pocketsphinx, I need three .pc files as the offical website says:
gstreamer-1.0.pc
gstreamer-base-1.0.pc
gstreamer-plugins-base-1.0.pc
I start a new empty ubuntu 18.
install the gstreamer through
$ sudo apt-get install libgstreamer1.0-dev
But only two of the three important .pc files exist after the previous command.
If I cd to /usr/ and run :
sudo find . -print | grep -i 'gstreamer-plugins-base-1.0'
the terminal returns empty( not found).
At the same time,
sudo find . -print | grep -i 'gstreamer-base-1.0'
and
sudo find . -print | grep -i 'gstreamer-1.0'
will give me correct paths.
Where is the missing gstreamer-plugins-base-1.0.pc file? Thank you.
If there are only two but not three of the .pc files, the configuration of pocketsphinx will not work.
**sudo apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev**
helped me generate the missing gstreamer-plugins-base-1.0.pc file.
Those two are needed.
I need to deploy a software project (packaged as an rpm) from a developer machine into a server. I'm using Fedora 23, along with the dnf package manager. I have to collect all dependencies of my rpm before I deploy to the server. The server can't be connected to the internet due to internal regulation (But I can ssh onto it). Running repository mirrors, etc. is not an option. I'm afraid I just have to collect all dependencies on the developer machine, scp (or ansible) them to the server and install them on the server.
I hoped that --installroot option in dnf could be of much help, as I could retrieve all rpms that would get installed into what dnf thinks is an empty system. This however doesn't work.
mkdir foo && sudo dnf install --installroot=$PWD/foo golang
gives an error:
Failed to synchronize cache for repo 'fedora'
Why does this fail? What are my options?
I'd like to see an elegant and robust solution. I'd prefer not to install anything on the server (I'd be most happy to do a single scp followed by one or two commands over ssh). A combination of rpm + yum/dnf magic would be great, but other solutions, including apt + deb are also of interest. I'd prefer not to use docker, and I'm strongly against running any additional infrastructure (docker registry, rpm mirror, etc.)
Here is a (ad hoc, lightly tested) script (assuming you have an already installed rpm system) to generate the list of all the rpm package names needed to install a given package (the script assumes goal="bash", edit to taste).
Feed the output names to dnf/yum to install.
#!/bin/sh
goal=bash
deps=$(rpm -q --qf '[%{REQUIRENAME}\n]' $goal | egrep -v '^(rpmlib|rtld|config|/)')
goals=
while true; do
subs=$(rpm -q --qf '%{NAME}\n' --whatprovides $deps | sort -u | tr '\n' ' ')
if [ ."$subs" = ."$goals" ]; then
echo "--- packages needed"
echo "$goals" | tr ' ' '\n'
exit 0
fi
goals=$(echo $goals $subs | tr ' ' '\n' | sort -u | tr '\n' ' ')
for sub in $subs; do
subdeps=$(rpm -q --qf '[%{REQUIRENAME}\n]' $sub | egrep -v '^(rpmlib|rtld|config|/)')
deps=$(echo $deps $subdeps | sort -u)
done
done
I went through fair amount of google search to install ack-grep on CentOS but I didn't find anything help. I also looked for the source codes but couldn't find it neither. Does anyone know how to install it on the OS?
Thanks a lot.
Could be essentially the same as https://stackoverflow.com/a/23155007/35946 but on CentOS 6.7 the answer is:
# yum install epel-release
# yum install ack
if you don't have the root permission, you can do as follows:
$ curl https://beyondgrep.com/ack-2.22-single-file > ~/bin/ack && chmod 0755 !#:3
or you can change to root user:
$ sudo su
# curl https://beyondgrep.com/ack-2.22-single-file > /bin/ack && chmod 0755 !#:3
You can get it from the EPEL software repository.
From the EPEL FAQ:
For EL5:
su -c 'rpm -Uvh http://download.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm'
...
su -c 'yum install ack'
For EL6:
su -c 'rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm'
...
su -c 'yum install ack'
Go to Beyond Grep and look at the section titled
Install The ack executeable
curl http://beyondgrep.com/ack-2.14-single-file > ~/bin/ack && chmod 0755 !#:3
And replace ack.2.14 with the current version of ack.
You may need to create the directory mkdir ~/bin/ first. You may
also need to modify ~/.bashrc to include this new path E.G.:
PATH=$PATH:$HOME/bin
Then reload ~/.bashrc
source ~/.bashrc
Test the installation by running ack:
rpm -qa | ack s
This should display any installed packages containing the letter s. (some linux distributions may use ack-grep as the command.
How did you try installing it? Are you using yum? The package is probably not called "ack-grep", but just "ack".
The name "ack-grep" is a Debian-specific thing because there was already a package called "ack", so they called it "ack-grep" instead. That was years ago and now they're dropping the original "ack" package and renaming "ack-grep" to "ack".
For RedHat Enterprise just do sudo yum install ack
Is there a way to ask yum which group(s) contain a given package? I know how to ask what packages are in a given group, and could write a quick script to trawl over all of the groups, but it would be nice to have a simpler mechanism than that.
If you are only looking for a 'simpler mechanism' to be used by a human and don't need it in some kind of script or so, you might get by with this one:
yum groupinfo '*' | less +/sendmail-cf
Of course, replace sendmail-cf with the package name you're interested in.
You can find a group to which the specified package belongs, by using yum-list-data plugin.
$ sudo yum -y install yum-plugin-list-data
$ yum -C list-groups ftp
Loaded plugins: fastestmirror, list-data
==================== Available Packages ====================
Console internet tools 1 (100%)
list-groups done
Or, if you are not allowed to install the plugin, please save the following script and try to run it with one argument, the name of the package you try to find:
#!/bin/sh
search_name=$1
LANG=C yum grouplist -v | grep "^ " | awk -F'(' '{print $1}' | sed -e 's/^ *//' | while read line
do
if [ "${search_name}" != "" ]; then
yum groupinfo "${line}" | grep -q "^ *${search_name}$"
if [ $? -eq 0 ]; then
echo ${line}
break
fi
fi
done
I don't know about yum, but remember that it sits on top of rpm. The rpm command you're looking for is:
rpm -q --qf %{group} yourRPM
You might want to add a \n at the end, depending on that you are up to:
[root#Niflheim ~]# rpm -q --qf %{group} setarch
System Environment/Kernel[root#Niflheim ~]# rpm -q --qf "%{group}\n" setarch
System Environment/Kernel
[root#Niflheim ~]#
I'm writing a package installer script in Perl. I need a command (probably OS command) that returns a simple 0 or 1 to the caller script if a Ubuntu/Debian package is installed or not.
I've tried
dpkg -s
It always returns 0.
dpkg -L
almost works but if the user does not
apt-get --purge remove
the packages, some files are left and always returns 0
I don't want to grep text - a simple true or false is what I need.
Any ideas?
#Andy:
aptitude remove unixodbc -y
dpkg-query -W unixodbc; echo $?
unixodbc 2.2.11-21
0
aptitude install unixodbc -y
dpkg-query -W unixodbc; echo $?
unixodbc 2.2.11-21
0
Maybe not ideal, but this works:
dpkg -s "$package" | grep '^Status:' | grep -q ' installed'
Or just
dpkg -s "$package" | grep -q '^Status:.* installed'
I think this does it:
test -n "`aptitude search '?name(^packagename$)~i'`"
Won't work on virtual packages.
If you're going to use the dpkg database, I concur with the "use grep" suggestions. Weighing the possibility that the output format of the package tools changes against the complexity of the alternative solutions, it's probably better to use grep.
That said, here are some possibilities:
use dpkg --get-selections. The exit status is always zero, but the output is very simple: <package><white space><status>. This is the "requested state" (install/hold/deinstall/purge), which can differ from the actual package state, but usually won't.
use one of the utilities in the dctrl-tools or dpkg-awk packages
implement a test that directly determines whether the dependency is present, e.g., use pkg-config, or search for a program in PATH. This has the advantage that it will allow the install to continue on systems where the dependency has been built by hand and installed without the knowledge of the package manager. This also makes your install script more portable.
you may want to look in to PackageKit