Table of Contents
History of Linux
- Snippet from Wikipedia: History of Linux
Linux began in 1991 as a personal project by Finnish student Linus Torvalds to create a new free operating system kernel. The resulting Linux kernel has been marked by constant growth throughout its history. Since the initial release of its source code in 1991, it has grown from a small number of C files under a license prohibiting commercial distribution to the 4.15 version in 2018 with more than 23.3 million lines of source code, not counting comments, under the GNU General Public License v2 with a syscall exception meaning anything that uses the kernel via system calls are not subject to the GNU GPL.: 7
- Snippet from Wikipedia: Linux
Linux ( LIN-uuks) is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution (distro), which includes the kernel and supporting system software and libraries—most of which are provided by third parties—to create a complete operating system, designed as a clone of Unix and released under the copyleft GPL license.
Thousands of Linux distributions exist, many based directly or indirectly on other distributions; popular Linux distributions include Debian, Fedora Linux, Linux Mint, Arch Linux, and Ubuntu, while commercial distributions include Red Hat Enterprise Linux, SUSE Linux Enterprise, and ChromeOS. Linux distributions are frequently used in server platforms. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses and recommends the name "GNU/Linux" to emphasize the use and importance of GNU software in many distributions, causing some controversy. Other than the Linux kernel, key components that make up a distribution may include a display server (windowing system), a package manager, a bootloader and a Unix shell.
Linux is one of the most prominent examples of free and open-source software collaboration. While originally developed for x86 based personal computers, it has since been ported to more platforms than any other operating system, and is used on a wide variety of devices including PCs, workstations, mainframes and embedded systems. Linux is the predominant operating system for servers and is also used on all of the world's 500 fastest supercomputers. When combined with Android, which is Linux-based and designed for smartphones, they have the largest installed base of all general-purpose operating systems.
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Linux, kernel, systemd, init, GRUB (GRand Unified Bootloader), initramfs, ext4 (Fourth Extended Filesystem), XFS, Btrfs (B-Tree File System), zram, zswap, cgroups (Control Groups), namespaces, selinux (Security-Enhanced Linux), AppArmor, iptables, nftables, firewalld, auditd, journald, syslog, logrotate, dmesg, udev, eBPF (Extended Berkeley Packet Filter), KVM (Kernel-based Virtual Machine), QEMU (Quick Emulator), VirtIO, LXC (Linux Containers), Docker, Podman, CRI-O, Kubernetes Integration, etcd, Linux Control Groups, LXD (Linux Daemon), Snap, Flatpak, AppImage, RPM (Red Hat Package Manager), dpkg (Debian Package Manager), APT (Advanced Package Tool), YUM (Yellowdog Updater, Modified), DNF (Dandified YUM), Pacman, Zypper, Portage, emerge, Nix, pkg-config, ldconfig, make, cmake, autoconf, automake, configure, GCC (GNU Compiler Collection), Clang, glibc (GNU C Library), musl, libstdc++, libc, binutils, GNU Coreutils, Bash (Bourne Again Shell), Zsh (Z Shell), Fish Shell, dash, sh, SSH (Secure Shell), sshd (SSH Daemon), scp (Secure Copy), rsync, SCP (Secure Copy Protocol), wget, curl, ftp, sftp, TFTP (Trivial File Transfer Protocol), NFS (Network File System), CIFS (Common Internet File System), Samba, autofs, mount, umount, lsblk, blkid, parted, fdisk, gdisk, mkfs, fsck, tune2fs, xfs_repair, btrfs-progs, mdadm (Multiple Device Admin), RAID (Redundant Array of Independent Disks), LVM (Logical Volume Manager), thin provisioning, lvcreate, lvremove, vgcreate, vgremove, pvcreate, pvremove, multipath-tools, ISCSI (Internet Small Computer Systems Interface), nvme-cli, dm-crypt, cryptsetup, LUKS (Linux Unified Key Setup), dracut, GRUB Customizer, PXE (Preboot Execution Environment), tftpboot, Syslinux, LiveCD, LiveUSB, mkbootdisk, dd, cpio, tar, gzip, bzip2, xz, 7zip, zstd, rsyslog, sysctl, lsmod, modprobe, depmod, modinfo, insmod, rmmod, kmod, dkms (Dynamic Kernel Module Support), kernel tuning, kernel headers, kernel modules, patch, diff, strace, ltrace, ptrace, perf, htop, top, iotop, atop, vmstat, mpstat, sar, dstat, iostat, uptime, free, df, du, ps, pidstat, nice, renice, kill, pkill, killall, jobs, bg, fg, wait, nohup, screen, tmux, cron, crontab, at, anacron, systemctl, service, chkconfig, rc-update, update-rc.d, ntpd (Network Time Protocol Daemon), chronyd, hwclock, timedatectl, ntpdate, ufw (Uncomplicated Firewall), iptables-save, iptables-restore, fail2ban, denyhosts, tcp_wrappers, libcap, setcap, getcap, auditctl, ausearch, kernel parameters, boot parameters, sysfs, procfs, debugfs, tmpfs, ramfs, overlayfs, aufs, bind mounts, chroot, pivot_root, overlay2, network namespaces, bridge-utils, iproute2, ip, ifconfig, route, netstat, ss, arp, ping, traceroute, mtr, tcpdump, ngrep, nmap, arp-scan, ethtool, iwconfig, iw, wpa_supplicant, hostapd, dnsmasq, networkmanager, nmcli, nmtui, system-config-network, dhclient, dhcpd, isc-dhcp-server, bind9, named, unbound, nslookup, dig, resolvconf, iptables, nftables, firewalld, conntrack, ipset, snort, suricata, tcp_wrappers, rkhunter, chkrootkit, clamav, lynis, openvpn, strongswan, libreswan, openconnect, network namespaces, virtual ethernet, veth, tap interfaces, tun interfaces, vlan, bridge, brctl, ovs-vsctl, openvswitch, macvlan, ipvlan, bonding, teamd, network teaming, multipath, multipath-tools, route tables, ip rule, ip route, policy routing, qos, tc (Traffic Control), htb, fq_codel, cake, iptables NAT, iptables MASQUERADE, squid, socks5, privoxy, tor, iptables DNAT, iptables SNAT, iptables REDIRECT, conntrack, stateful firewall, stateless firewall, tcp_window_scaling, tcp_timestamps, tcp_sack, tcp_rmem, tcp_wmem, tcp_no_metrics_save, tcp_ecn, netem, ip6tables, ipset, ebtables, arptables, bridge-nf, br_netfilter, openvswitch, gre tunnels, ipip tunnels, vxlan, gretap, macsec, macvlan, ipvlan, wireguard, strongswan, libreswan, xfrm, ipsec, isakmpd, racoon, openswan, ikev2, ikev1, vpn tunnels, gre tunnels, vxlan tunnels, fou tunnels, ipip tunnels.
Linux Core Utilities commands - GNU Core Utilities command-line interface programs
This list should really only include standard universal commands that come with GNU Core Utilities.
- tac
This should really only include standard universal commands that come with all Linux distributions adhering to the Single UNIX Specification.
Really this is “Unix programs”, since there are no commands in Unix, they are programs except for shell builtins.
Unix command-line interface programs and shell builtins:
Unix user environment commands:
[[env]]
Unix text processing commands:
[[alias (command) ]] | [[ alias]]
Note: Networking is not part of SUS
Unix network utility commands:
Unix software development commands: Note: There are a huge number of Linux software development tools / Unix software development tools; this list should be restricted to ones that are standardized as part of Unix, i.e., those marked SD, CD], or FD (http://pubs.opengroup.org/onlinepubs/9699919799/help/codes.html) within the Unix/POSIX specifications
See also
References
Linux Commands (ls, cd, pwd, cp, mv, rm, mkdir, rmdir, touch, cat, less, head, tail, grep, find, chmod, chown, chgrp, tar, gzip, gunzip, df, du, ps, top, kill, man, ssh, scp, rsync, vim, nano, sed, awk, ping, ifconfig, netstat, route, traceroute, dig), Linux Fundamentals, Linux Inventor: Linus Torvalds says “Linux sucks | Linux just sucks less.”, Linux Best Practices - Linux Anti-Patterns, Linux kernel, Linux commands-Linux Shells-Linux CLI-GNU-Linux GUI-X11, Linux DevOps-Linux development-Linux system programming-Bash-zsh-Linux API, Linux package managers, Linux configuration management (Ansible on Linux, Chef on Linux, Puppet on Linux, PowerShell on Linux), Linux Distros (RHEL-Rocky Linux-CentOS (CentOS Stream)-Oracle Linux-Fedora, Ubuntu-Debian-Linux Mint-Raspberry Pi OS-Kali Linux-Tails, openSUSE - SUSE Linux Enterprise Server (SLES), Arch Linux-Manjaro Linux, Alpine Linux-BusyBox - Slackware - Android-Chrome OS); UNIX-UNIX Distros (FreeBSD-OpenBSD, BSD, macOS), Linux networking, Linux storage, Linux secrets, Linux security (Linux IAM-LDAP-Linux Firewall-Linux Proxy), Linux docs, Linux GitHub, Linux Containers, Linux VM, Linux on AWS, Linux on Azure, Linux on GCP, Linux on Windows (WSL), Linux on IBM, Linux on Mainframe (Linux on IBM Z mainframe - Linux for System z - IBM LinuxONE), Embedded Linux, Linus IoT-Linux on Raspberry Pi, LinuxOps-Linux sysadmin, systemd-userland-kernel space-POSIX-SUS-Linux filesystem-Linux architecture, Linux books-UNIX books, Linux courses, Linux Foundation, Linux history, Linux philosophy, Linux adoption, Linux Glossary - Glossaire de Linux - French, Linux topics (navbar_linux and navbar_unix - see also navbar_fedora, navbar_rhel, navbar_centos, navbar_debian, navbar_ubuntu, navbar_linux_mint, navbar_freebsd, navbar_opensuse, navbar_manjaro, navbar_kali_linux, navbar_nixos, navbar_alpine_linux, navbar_tails_linux, navbar_slackware, navbar_rocky_linux, navbar_arch_linux, navbar_oracle_linux)
Computer History: Big Tech Silicon Valley Technocracy, Surveillance Valley - The Rise of the Military-Digital Complex - History of the Internet, Facebook (zuck.pdf), Tesla / Space X / Twitter (musk.pdf), History, IT History, Cloud History (Azure History, AWS History, GCP History), Amazon.com / Blue Origin (Bezos - bezos.pdf), Internet History, Email History, Bell Labs, Xerox PARC, OS History (UNIX History - Linux History - Minicomputer - Mainframe History - IBM History - Personal Computer History (Apple I - Apple II - Apple III, IBM PC, Compaq, Macintosh 128K, Apple Lisa), Vintage Apple Resources, Computer Stores, macOS History - Apple History - Apple, Inc. (Steve Jobs jobs.pdf), Windows History - Windows Server History - Microsoft History - Microsoft (Bill Gates gates.pdf, Programming History (C History - C plus plus History | C++ History - C sharp History | History - COBOL History - Golang History - Java History - JavaScript History - Python History - PowerShell History), Computing History, Computing Hardware History, Software Engineering History, Software History, Networking History, Vintage Computing - Vintage Computers - Retrocomputing, Legacy - Defunct Microprocessor Companies (MOS Technology - 6502, Motorola - Motorola 68000, Zilog - Zilog Z80), Legacy - Defunct Computer Companies, Legacy - Defunct Software Companies, History of Computer Hardware, History of Computing, History of Programming Languages, Legacy - Defunct Electronics Companies, PowerPC architecture family, List of PowerPC processors, CPU - Microprocessors, Discontinued Intel processors, 4-bit computing - 4-bit, 8-bit computing - 8-bit, 16-bit computing - 16-bit, 32-bit computing - 32-bit, History of Microsoft Exchange Server (Microsoft Mail - formerly Network Courier), Computer History Museum, Military-Digital Complex - Military-Industrial Complex (Read Surveillance Valley - The Rise of the Military-Digital Complex), Computer History Bibliography, Awesome Retrocomputing, WinWorldPC.com. (navbar_ithistory - see also navbar_bigtech, navbar_technocracy, navbar_programminghistory)
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