Bash script writing is a import approach to configure the linux system. Suppose we wish to add a user if not exists, the command may seems as follow:
TARGET_USER=alice if (! id -u $TARGET_USER > /dev/null 2>&1 ); then echo "creating user $TARGET_USER" # adduser $TARGET_USER fi
However, it is kind of too long. In this case short-circuiting is a alternative solution. (more…)
The open-source Anaconda Distribution is an easy way to perform Python/R data science and machine learning on Linux, Windows, and Mac OS X. We could easily prepare an isolated and constant environment on anywhere based on a configure file.
Considering the various kind of strange errors due to the different versions of python and python libraries, this management tool makes our life much more comfortable in deploying and cooperating.
To gracefully shutdown a http server requires a few steps.
The http library's serving function will block over there when getting started, until we call http.Server.Close(). As for us, we can invoke the starting function in a goroutine, and call close in another one.
A simple way is to generate a personal access token instead.
To detect the exists of the graphics cards on the computer, we may use command lshw. (more…)