I just installed Windows Subsystem for Linux for the first time and downloaded the Debian distribution from the Windows Store.
The first thing I tried to do was use the "mv" command. The second thing was to run "man mv" because I don't remember how to use it. But I received the error:
-bash: man: command not found
It looks like the package I want is called manpages. But I can't install that:
sudo apt-get install manpages
[sudo] password for pi:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package manpages is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or is only available from another source
E: Package 'manpages' has no installation candidate
How do I get the man command up and running?
apt update to update the local package lists followed by apt install man-db to install the actual package.
I want to add to elken's answer that apparently, the 'man-db' packages doesn't cover all the manpages. For example, I needed documentation for the C stdio library (fopen, fgets, ...), and for that I had to install 'manpages-dev':
sudo apt install manpages-dev
Apparently there are also some other manpage collections (/different names for them on certain unix distros), see https://superuser.com/questions/40609/how-to-install-man-pages-for-c-standard-library-functions-in-ubuntu
Related
I'm using Ubuntu 14.04 and I am updating the rpmbuild spec file of an application that now uses Qt.
The packages that I need are the following:
sudo apt-get build-essential
sudo apt-get install mesa-common-dev -y
sudo apt-get install libglu1-mesa-dev -y
sudo apt-get qt5-default
sudo apt-get qtwebengine5-dev
I know the spec file has "BuildRequires" and "Requires" dependency tags...any help in writing this as well as some examples would be helpful. I have a working spec file I just need to add the dependencies.
I think there is some confusion here. spec files are used to generate rpm files. However Ubuntu uses deb files.
Supposing you really want to create an rpm; then you need to know this:
BuildRequires
these packages are required for building the rpm. Typically you will need build-essential and the '*-dev` packages for building your application
Requires
these packages are required upon installation for your application to work; mostly you don't need your build-tools anymore, but you still need the qt5-default for example.
PS: on a little side note I might be one of the only people in the world building deb packages using spec files with a special conversion script https://bitbucket.org/klaussfreire/spec2deb/src/default/ but I wouldn't really recommend that.
I am trying to install graphviz on my RHEL VM. when I run
$sudo yum install graphviz
I get this:
This system is not registered with an entitlement server. You can use subscription-manager to register.
No package graphviz available.
Error: Nothing to do
I later found out that I get this same problem with all packages.
I have tried several solutions I have found online such as:
saving the .repo file found here (this link will download the file)
then running
#from dir containing graphviz-rhel.repo
$sudo yum-config-manager --add-repo graphviz-rhel.repo
the output was
This system is not registered with an entitlement server. You can use subscription-manager to register.
adding repo from: graphviz-rhel.repo
grabbing file graphviz-rhel.repo to /etc/yum.repos.d/graphviz-rhel.repo
repo saved to /etc/yum.repos.d/graphviz-rhel.repo
Then I ran
$sudo yum-config-manager --enable graphviz-rhel
This gives no output and $yum-config-manager list all does not list anything related to graphviz as a repo (enabled or disabled)
I tried the solution here: failed to install 'graphviz*' packages with yum command on my RHEL server
except I found the rpm file here
When I ran the rpm command I got an error because I was missing a couple dozen dependencies so I dont think following this solution for all of them is a reasonable solution.
If someone can either inform me why one of these didn't work or let me know how to accomplish my goal of getting yum install <package> to work I would greatly appreciate it.
As posted in the comments, in order to utilize yum on a RHEL system you need an active subscription
I'm getting a consistent error when trying to use the html-pdf package in my node application:
StatusError: Error: spawn /home/site/wwwroot/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs ENOENT
As far as I can tell everything is installed correctly and the npm install works as expected. My suspicion is that there is some missing dependency in the built-in linux image, but I'm not sure how to confirm that.
According to the information comes from the Download PhantomJS page, there is two note for Linux Distributions as below.
Note: For this static build, the binary is self-contained. There is no requirement to install Qt, WebKit, or any other libraries. It however still relies on Fontconfig (the package fontconfig or libfontconfig, depending on the distribution). The system must have GLIBCXX_3.4.9 and GLIBC_2.7.
So the native package fontconfig or libfontconfig must have been installed in docker image first.
For Debian/Ubuntu system, you can add RUN apt install fontconfig in the docker file, and check the package installed whether be exists via the command dpkg -l|grep fontconfig.
For Fedora/CentOS system, add RUN yum install -y fontconfig, and check the installed on via yum list installed|grep fontconfig.
I am on php7 but I have a legacy program using:
imagecreatefromjpeg($filename)
So I tried to install:
$ sudo apt-get install php5-gd
No result:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package php5-gd is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'php5-gd' has no installation candidate
What should I install then instead for php7?
Or better, what should I replace imagecreatefromjpeg with?
Any ideas?
I have enabled extension=php_gd2.dll in my php.ini.
But I still get this error:
Uncaught Error: Call to undefined function imagecreatefromjpeg() in
/var/w
According to PHP.nethttp://php.net/manual/en/image.installation.php#120116
sudo apt-get install php7.0-gd
In my site I am getting an error : an error occurred while processing this directive
It was working fine before moving to the new server. So when I checked I found that mod_perl module is missing. So I tried to install it by downloading the module to the server and then tried to run using Perl Makefile.pl but it was asking for apache src and I was not able to find it. I can see /usr/bin/apache/ folder but no source file inside the folder.
So I tried to install the module from Cpanel but I got the following error:
The C compiler is not functional and auto repair failed. Perl module installs require a working C compiler. Please repair the C compiler and try again.
Please let me know how to install it as I have tried most of the cases searching the net.
Thanks in advance
It's probably best to use your distro's packaging system to install mod_perl, especially, if apache is installed from a package too.
Yum based systems:
yum install mod_perl
Deb based systems
apt-get install mod_perl
you may need to enable the module using a2enmod
Mostly gcc is either corrupted or not present on your system. Please try to re/install gcc on your system
sudo apt-get update
sudo apt-get install build-essential
On Redhat:
yum update
yum install devtoolset-2-toolchain
It seems like a problem with your installation of gcc. You're using CloudLinux, so you should use yum to reinstall gcc.
$ sudo -i yum install gcc
But you don't need gcc if you install the pre-build packages.
$ sudo -i yum install mod_perl
Either way, you're going to need to get to grips with package installation for your system - and for that you're going to need root access.