Linux, programming and more
Virtualenv was for me until 2020 a python-default tool for creating isolated virtual environments for python projects.
Virtualenv was always easy to handle and known as a mature pythonic tool under python developers.
But now, I think pipenv is stable and known enough to switch to it.
A lot of different tools are around the internet which can be useful to determine different SMTP troubles.
The most of them are very useful but they are all reachable over the internet and don’t provide any kind of API for integration of monitoring or complex integration in (pre)deployment pipelines.
This is a short overview of some command line tools for developers and administrators, to check the e-mail flow during developing, emulate and intercept outgoing emails and afterwards for maintaining the setups.
Apache Subversion often abbreviated as SVN is a software versioning and revision control system. This post was written during a integration and PoC of SVN in a deployment stages.
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CentOS 8 has PostgreSQL within the default repositories but its’ a bit outdated – currently during writing of this post, it’s the version: 10.6.
The currently official version of PostgreSQL is version: 12.1
So this instruction was written to install the current actual version of PostgreSQL 12.1 on CentoOS 8 system.
Let’s get started!
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CONTROL + C is the magic key combination to stop any execution at the command line. The execution stops immediately and in worst case you see something like ^C as the output of your running command.
If you stop the execution of any Python-Program, the output will be a bit unordinary and in the most cases, annoying. Because your Terminal gets flooded and you will get an Exception:
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