Why learn Linux
1970 UNIX
1979 AT&T
1984 Richard Stallman GNU project GPL agreement
1987 gcc compiler
1991 Linus Torvalds Linux operating system
1994 Bob Young Redhat Red Hat
1998 Intel IBM
2021~
Linux PK windows
stable and efficient
free or a small fee
less quick fix vulnerabilities and
multi-tasking multi-user
more secure user and file permissions strategies
for small embedded system kernel is
relatively resource intensive
Common LINUX version
Red Hat Enterprise System (RedHatEnterpriseLinux, RHEL.) Server
Community Enterprise Operating System (Community Enterprise Operating System, CentOS) Free Centos Stream
Fedora Desktop version system suite released by Red Hat (currently not limited to desktop version)
openSUSE A well-known Linux system from Germany has a good reputation and market share in the world.
Gentoo has a high degree of customization and complex operation, so it is suitable for experienced personnel. Readers can try this system after studying this book.
Debian has strong stability and security, provides free basic support, can well support various hardware architectures, and provides nearly 100,000 different open source software. It has a high degree of recognition and usage abroad.
Ubuntu is an operating system derived from Debian, which is highly compatible with new hardware. server