You can get the version of CentOS using the following command.
rpm -q centos-release
This trick can be used to get the version of the CentOS distribution on a Spark cluster. Basically, you run this command in the driver or workers to print the versions and then parse the log …
There are tons of tools for converting PDF pictures to EPS pictures in Linux.
The pdf2ps command is a good one.
It produces EPS pictures without losing much resolution.
The general purpose tools convert
(from the ImageMagick package) does not produce as good quality EPS figures.
The simplest way to check whether a Linux system is running systemd, upstart or SysV is by running the following command.
ps -p1 | grep "init\|upstart\|systemd"
How to determine which system manager is running on Linux System
FAT32 is an outdated filesystem. The maximum size for a single file is 4G. You should instead exFAT instead of FAT32 where possible.
exFAT is great cross-platform filesystem that is support out-of-box by Windows, Linux and macOS. There is practically no limit (big enough for average users) on …
ttf-arphic-uming, ttf-wqy-microhei, ttf-wqy-zenhei, xfonts-wqy and ttf-opensymbol
are some packages related to Chinese fonts.
If you have Adobe Reader installed on your computer, you can use Adobe Chinese fonts for free.
To check Chinese fonts installed on your computer,
you can use the command fc-list :lang=zh-cn | sort.
To install extra …
Open /etc/apt/sources.list and add the following line to the end.
deb http://www.backports.org/debian jessie-backports main contrib non-free
or
deb http://ftp.us.debian.org/debian/ jessie-backports main contrib non-free
deb-src http://ftp.us.debian.org/debian/ jessie-backports main contrib non-free
Make sure the GPG …