two neat tools to preview fonts
hostnamectl; # tested with Operating System: Debian GNU/Linux 10 (buster) Kernel: Linux 4.19.0-18-amd64 Architecture: x86-64 su - root apt update apt install font-manager
apt install font-manager gnome-font-viewer
Adding new fonts for all users
pre packaged: in Debian 10
claims that there are 2000 pre packaged fonts:
su - root apt update # list available pre packaged debian font packages apt-cache search ^fonts-
under Debian 10 there are:
apt-cache search ^fonts-|wc -l 418; # but it could be there are multiple fonts and font-variations within one package
To install fonts for all users
for example the boring company font:
one need to login as root and create a directory under
# tested on hostnamectl Static hostname: centos.localdomain Chassis: laptop Operating System: CentOS Linux 7 (Core) CPE OS Name: cpe:/o:centos:centos:7 Kernel: Linux 4.15.9 Architecture: x86-64 # in combination with: su - root; # become root # change into dir cd /usr/share/fonts/; # download font wget https://www.futurafree.com/wp-content/uploads/2017/04/futura-bold.zip # unpack unzip futura-bold.zip; # seems spaces in filename is no good mv "futura bold" "futura-bold"; # so one got now this new dir: ll /usr/share/fonts/futura-bold total 248K drwxr-xr-x. 2 root root 179 Dec 15 14:49 . drwxr-xr-x. 45 root root 4.0K Dec 15 14:49 .. -rwxr-xr-x. 1 root root 38K Aug 9 2015 Futura Bold.ttf -rwxr-xr-x. 1 root root 41K Aug 5 2015 Futura Extra Bold.ttf -rwxr-xr-x. 1 root root 49K Aug 5 2015 Futura Round Bold.ttf -rwxr-xr-x. 1 root root 28K Aug 5 2015 FuturaStd Bold.ttf -rwxr-xr-x. 1 root root 28K Aug 5 2015 Futura Std Extra Bold.ttf -rwxr-xr-x. 1 root root 49K Aug 5 2015 Futura URW Extra Bold.ttf # change permission rights # VERY IMPORTANT OR LibreOffice will not be able to access the font chmod -R ugo+rx futura-bold # or on the whole directory chmod -R ugo+rx /usr/share/fonts/ # now run this: # build font information cache files fc-cache -f /usr/share/fonts/
result should look like this:
can ttf font files contain malicious code?
for Windows: yes?
for Appe Mac OSX: yes?
CVE-2016-1797 : “Apple Type Services (ATS) in Apple OS X before 10.11.5 allows attackers to bypass intended FontValidator sandbox-policy restrictions and execute arbitrary code in a privileged context via a crafted app.”
for linux? have no idea
while for Ubuntu / Debian a program exists called “font-manager”, no such thing seems to exist: yum search font-manager (nothing found)
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