To find out which version of Windows your device is running, press the Windows logo key + R, type winver in the Open box, and then select OK. Here's how to learn more: Select the Start button > Settings > System > About .
Red Hat Enterprise Linux 8 (Ootpa) is based on Fedora 28, upstream Linux kernel 4.18, systemd 239, and GNOME 3.28. The first beta was announced on 14 November 2018. Red Hat Enterprise Linux 8 was officially released on 2019-05-07.
SQLPLUS: Command not found in linux Solution
- We need to check the sqlplus directory under oracle home.
- If you don't know the oracle database ORACLE_HOME, there is a simple way to find out it as:
- Check your ORACLE_HOME is set or not from below command.
- Check your ORACLE_SID is set or not, from below command.
Option 1: Command lsb_release -aOpen the terminal using “Show Applications” or use the keyboard shortcut [Ctrl] + [Alt] + [T]. Type the command “lsb_release -a” into the command line and press enter. The terminal shows the Ubuntu version you're running under “Description” and “Release”.
Type mysql --version to see if it is installed. To find location use find -name mysql . If you're looking for the RPM. Most of it's data is stored in /var/lib/mysql so that's another good place to look.
Oracle Linux
| Oracle Linux 7 |
|---|
| Latest release | 8.3 / 13 November 2020 |
| Marketing target | Enterprise and Cloud computing |
| Update method | YUM (PackageKit) |
| Package manager | RPM Package Manager |
Using the SQL Server Installation CenterIn the right pane, choose Installed SQL Server features discovery report. The report opens in your default web browser. You can use this report to determine your SQL Server instance name, version, edition, and more information.
Linux
- Open the command line.
- Type the following command: grep MemTotal /proc/meminfo.
- You should see something similar to the following as output: MemTotal: 4194304 kB.
- This is your total available memory.
- Want to find out which kernel version you are running?
- Launch a terminal window, then enter the following: uname –r.
- The hostnamectl command is typically used to display information about the system's network configuration.
- To display the proc/version file, enter the command: cat /proc/version.
Check Python version from command line / in script
- Check the Python version on the command line: --version , -V , -VV.
- Check the Python version in the script: sys , platform. Various information strings including version number: sys.version. A tuple of version numbers: sys.version_info. Version number string: platform.python_version()
8.3.Upgrading from RHEL 6.X to RHEL 7.X
- Install migration tool. Install the tool to perform the migration from RHEL 6 to RHEL 7:
- Disable all repositories. Disable all the enabled repositories:
- Upgrade to RHEL 7 using ISO. Upgrade to RHEL 7 using the Red Hat upgrade tool and reboot after the upgrade process is completed:
There are 3 ways to get the Tomcat version information.
- Check the %_envision%logspi_webserver. log file and find the line contains Apache Tomcat.
- Refer to the ServerInfo. properties file within the tomcat-catalina.
- Run a Java command to show the Tomcat version.
You can use one of the following command to find the number of physical CPU cores including all cores on Linux:
- lscpu command.
- cat /proc/cpuinfo.
- top or htop command.
- nproc command.
- hwinfo command.
- dmidecode -t processor command.
- getconf _NPROCESSORS_ONLN command.
CentOS Linux is NOT Red Hat® Linux, it is NOT Fedora™ Linux. It is NOT Red Hat® Enterprise Linux. CentOS Linux does NOT contain Red Hat® Linux, Fedora™, or Red Hat® Enterprise Linux. CentOS is built from publicly available source code provided by Red Hat, Inc.
Red Hat Enterprise Linux 7
| Release | General Availability Date | Kernel Version |
|---|
| RHEL 7.7 | 2019-08-06 | 3.10.0-1062 |
| RHEL 7.6 | 2018-10-30 | 3.10.0-957 |
| RHEL 7.5 | 2018-04-10 | 3.10.0-862 |
| RHEL 7.4 | 2017-07-31 | 3.10.0-693 |
“yum update” updates all the presently installed packages to their latest versions that are available in the repositories and “yum upgrade” performs the same action as “yum update”, but once finished it also removes all of the obsolete packages from the system.
To see the installed npm packages with their version, the command is npm ls --depth=0 , which, by default, displays what is installed locally. To see the globally installed packages, add the -global argument: npm ls --depth=0 -global .
Check the version of Python package / library
- Get the version in Python script: __version__ attribute.
- Check with pip command. List installed packages: pip list. List installed packages: pip freeze. Check details of installed packages: pip show.
- Check with conda command: conda list.
You can use the packageVersion() function to print version information about the loaded packages. To print the version information about R, the OS and attached or loaded packages, use the sessionInfo() function.
A specific version of a package can be selected for installation by following the package name with an equals and the version of the package to select. This will cause that version to be located and selected for install.
To find out if your apt-get can find a different version, you can use the apt-cache command's search option. E.g. the following should list all packages with the word libreoffice in them. Usually you'd look for version numbers like 4-0, or 4-1, or 4-2 at the end to find a specific version.
You can see what services are running with the netstat command. While netstat is still available, most Linux distributions are transitioning to ss command. use ss command with -t and -a flags to list all TCP sockets. This displays both listening and non-listening sockets.
