If you can access the package via yum
then you can either download and install or you can download an already installed package as rpm
file.
Here is written how, I quoted it anyways.
If you have that rpm
file you can install it also via yum: yum install packageName.rpm
, you may have to invoke sudo
.
The package names for the C/C++ compiler are: gcc.x86_64
(C: 64bit) and gcc-c++.x86_64
(C++: 64bit) or gcc.i686
(C: 32bit) and gcc-c++.i686
(C++: 32bit).
If the downloaded version via yum, which is the latest available for your system, is not the version you want, you have to download the sources and build it on your own, see here.
There are two ways to download a package without installing it.
One is using the "downloadonly" plugin for yum, the other is using "yumdownloader" utility.
Downloadonly plugin for yum
Install the package including "downloadonly" plugin:
(RHEL5)
# yum install yum-downloadonly
(RHEL6)
# yum install yum-plugin-downloadonly
Run yum command with "--downloadonly" option as follows:
# yum install --downloadonly --downloaddir=<directory> <package>
Confirm the RPM files are available in the specified download directory.
Note:
- Before using the plugin, check /etc/yum/pluginconf.d/downloadonly.conf to confirm that this plugin is "enabled=1"
- This is applicable for "yum install/yum update" and not for "yum groupinstall". Use "yum groupinfo" to identify packages within a specific group.
- If only the package name is specified, the latest available package is downloaded (such as sshd). Otherwise, you can specify the full package name and version (such as httpd-2.2.3-22.el5).
- If you do not use the --downloaddir option, files are saved by default in /var/cache/yum/ in rhel-{arch}-channel/packages
- If desired, you can download multiple packages on the same command.
You still need to re-download the repodata if the repodata expires before you re-use the cache. By default it takes two hours to expire.
Yumdownloader
If downloading a installed package, "yumdownloader" is useful.
Install the yum-utils package:
# yum install yum-utils
Run the command followed by the desired package:
# yumdownloader <package>
Note:
- The package is saved in the current working directly by default; use the --destdir option to specify an alternate location.
- Be sure to add --resolve if you need to download dependencies.