This document provides a summary of common Linux commands organized into the following sections: setting kernel parameters, setting process limits, adding interim swap/tmp space, troubleshooting tools, Bash shell tweaks, key system configuration files, system information commands, network information commands, package management commands, user management commands, backup/restore/file transfer commands, and miscellaneous commands. It includes brief descriptions of commands such as lsof, netstat, tcpdump, strace, chage, passwd, tar, zip, and others. The document is a pocket guide to essential Linux commands and system configuration.
This document provides a summary of common Linux commands organized into the following sections: setting kernel parameters, setting process limits, adding interim swap/tmp space, troubleshooting tools, Bash shell tweaks, key system configuration files, system information commands, network information commands, package management commands, user management commands, backup/restore/file transfer commands, and miscellaneous commands. It includes brief descriptions of commands such as lsof, netstat, tcpdump, strace, chage, passwd, tar, zip, and others. The document is a pocket guide to essential Linux commands and system configuration.
File Transfer Protocol (FTP) allows copying files between systems over TCP/IP. It uses two TCP connections, one for control commands and another for transferring file data. FTP solves problems like different file naming conventions or text representations between systems. It supports anonymous access, security, and transferring different file types like binary images. Examples show the FTP session process and commands for listing directories, retrieving files, and uploading files.
This document provides summaries of basic Linux commands including commands to view the calendar, date, print messages, change passwords, view documentation, and see the directory structure. It also summarizes commands for file handling, searching files, editing text, and viewing system information. Common commands covered include cal, date, echo, passwd, man, mkdir, cat, more, less, head, tail, grep, and ps. The document is intended as an introduction to basic Linux commands.
Présentation aux investisseurs Exo B2B, Chambre de Commerce du Montréal Métr...Exo -B2B
Présentation de David Chabot: Comment réussir votre pitch aux investisseurs.
(Comment répondre aux 10 questions de base en 15 minutes!)
CETTE PRÉSENTATION VOUS AIDERA À
-Apprendre les concepts de base de la présentation aux investisseurs et aux financiers;
-Maximiser vos chances de vente et vous démarquer face à la concurrence;
-Préparer une présentation claire et concise qui captera l’attention de vos interlocuteurs.
Exo B2B à la Chambre de Commerce du Montréal Métropolitain le 19 octobre 2015
The Filesystem Hierarchy Standard (FHS) defines the main directories and their contents in Linux operating systems, formalizing and extending the traditional BSD filesystem hierarchy. It is maintained by the Linux Foundation. The standard specifies a root directory "/" and defines the purpose and recommended contents of directories including /bin, /boot, /dev, /etc, /home, /lib, /mnt, /opt, /proc, /root, /sbin, /srv, /tmp, /usr, and /var.
The kernel is the central component of most computer operating systems. It acts as a bridge between applications and hardware, managing system resources and communication. Kernels can be categorized as monolithic, micro, hybrid, or exokernel based on how operating system services are implemented. A monolithic kernel executes all services together, while a microkernel runs most in user space for modularity. Hybrid kernels combine aspects of both.
This document advertises used management textbooks and notes for sale at affordable prices for management students. It lists various textbooks covering topics such as abnormal psychology, entrepreneurship, international business, business law, microeconomics, operations management, business communication, managerial psychology, business research methods, macroeconomics, and more. For each textbook, supplementary materials like lecturers' notes, tutorials, answers, and past year questions are included. The document provides instructions on how to place an order via email and specifies the payment and delivery details.
This document provides summaries of basic Linux commands including commands to view the calendar, date, print messages, change passwords, view documentation, and see the directory structure. It also summarizes commands for file handling, searching files, editing text, and viewing system information. The document is intended as an introduction to common Linux commands and their usage.
1) The document discusses copy-number variations detected in lymphoblastoid cell lines. It notes that while cell lines allow for permanent storage, blood samples are the best source of DNA.
2) It questions whether cell line data accurately represent the DNA, or how close they are to data obtained directly from blood samples.
3) The motivation for studying copy-number variations is the advancement of DNA sequencing technology and efforts to understand rare genetic diseases, though using cell lines instead of blood introduces uncertainties.
This document summarizes a group's plans for filming the opening of a film noir project. It describes choosing isolated, abandoned locations to represent the main character's emotions. Two key locations selected are a bedroom and kitchen. Costumes and props are selected to establish the time period and mood, including a trilby hat, braces, and cracked mirror for the main character, and a black dress for the femme fatale. Potential music and sound effects are listed. Photos of potential cast members are presented. Research on film noir themes is shown from blogs. A storyboard and schedule are also referenced.
The Linux boot process involves 6 key stages:
1. The BIOS performs initial checks and loads the boot loader.
2. The boot loader like GRUB is loaded by the MBR and displays a menu to select the kernel.
3. The selected kernel is loaded into memory along with the initrd and root filesystem is mounted.
4. The kernel executes init which reads the runlevel and loads appropriate services.
5. Based on the runlevel, programs are started or shut down in sequence to start or shut down services.
6. Once booted, the Linux login prompt is displayed.
This document contains 25 multiple choice questions about street foods from around the world. Some of the questions ask about specific street foods like vada pao and jhaal muri, while others reference famous sayings, movies, or historical events related to street food culture. The questions cover a wide variety of global street foods and how they have been referenced or influenced popular culture.
www.brand-camp.com We realise that lots of entrepreneurs are struggling with how to get more clients and customers, so we have created this presentation to help you do just that! It was originally a webinar, so if you would like clarification of any points, please contact me directly.
This document provides an overview of basic Linux commands for navigation, listing directories, reading and manipulating files. It explains commands like pwd, cd, ls, cat, cp, mv, rm, mkdir to change directories, list files, read files, copy, move and delete files/directories. It also introduces the vi editor for creating new files and mentions some other miscellaneous commands like date, chmod, user management tools.
Stewart Mitchelmore and Daniel Morris propose filming a post-apocalyptic psychological thriller about a 16-year old boy named Hugo who is living alone in a deserted world until he encounters a new life form. They plan to target their film towards teenagers aged 15+ and adopt a visual style that is edgy, gritty, and maintains some humor. Daniel will serve as the director, handle sound, be the cinematographer, and boom operator. Stewart will act, manage locations, and be the editor-in-chief. They will both contribute as screenwriters.
Kawasaki disease is an autoimmune disease that causes inflammation of blood vessels throughout the body. It most commonly affects children under 5 years old, especially of Japanese and Korean descent. Signs include a persistent high fever for at least 5 days along with redness and swelling of the eyes, lips, mouth, hands, and feet. If not treated within 10 days, it can lead to heart problems such as irregular heartbeat or aneurysms of the coronary arteries. While the cause is unknown, it is thought to be due to an infectious agent and occurs most often in winter and spring. Early treatment with medicines can cure it and prevent heart damage.
This document defines and provides examples of the different types of pronouns in English:
- Personal pronouns can take different forms based on gender and whether they are subjects or objects.
- Demonstrative pronouns like this and that point out specific items. Indefinite pronouns like some and any refer to non-specific things.
- Interrogative pronouns like who, what and why are used to ask questions. Possessive pronouns like my, your and their show possession.
Problems and Potential for Open and Distance Learning in AsiaKikumaEhime
This document discusses the potential for open and distance learning in Asia. It notes that while distance education aims to overcome physical barriers, connectivity issues can still limit its reach. Developed countries are focused on expanding existing distance education methods, while underdeveloped countries see it as a way to address educational inadequacies. The document outlines challenges like differing learning styles, technology access, faculty support, and quality assurance. However, it argues that distance education continues to grow in acceptance and provides solutions to complex problems by expanding educational opportunities throughout Asia and the world.
The Ruthinian School magazine contents page summary:
The contents page has a formal and sophisticated presentation with symmetry and fluency. It only features the school logo and lacks images, suggesting the magazine solely promotes the school for parents/guardians rather than entertaining students.
King Edward VI School magazine contents page summary:
The contents page has a simple, minimalist design that breaks conventions by lacking images and color. It seems aimed at an older audience by being unexciting and focusing only on the basics required rather than attracting readers.
Bebington High School magazine contents page summary:
The contents page has a bold, artsy layout perhaps reflecting the school's subjects. It features one smiling image of
The document provides instructions on installing Linux including collecting hardware information beforehand, preparing disk partitions, installing from a CD-ROM, installing additional packages, and basic Linux commands. It also discusses uninstalling software using the synaptic graphical tool or apt-get command line tool and describes common Linux commands like mkdir, cd, ls, cp and their usage.
Teradata Corporation is an American company that sells data warehousing hardware and software. It was founded in 1979 and spun off from NCR Corporation in 2007. Teradata's products include integrated data warehouse appliances and software that allow customers to consolidate data from various sources and perform analysis. The company has over 10,000 employees and annual revenue of over $2.6 billion.
Teradata is an American company that sells analytic data platforms and related services. It was originally a division of NCR Corporation but spun off in 2007. Teradata's products consolidate data from different sources and make it available for analysis. It uses a massively parallel processing architecture that allows for linear scalability. Major customers include Walmart, AT&T, and Continental Airlines. Teradata competes with other data warehousing solutions from Oracle, IBM, and Microsoft.
This document advertises used management textbooks and notes for sale at affordable prices for management students. It lists various textbooks covering topics such as abnormal psychology, entrepreneurship, international business, business law, microeconomics, operations management, business communication, managerial psychology, business research methods, macroeconomics, and more. For each textbook, supplementary materials like lecturers' notes, tutorials, answers, and past year questions are included. The document provides instructions on how to place an order via email and specifies the payment and delivery details.
This document provides summaries of basic Linux commands including commands to view the calendar, date, print messages, change passwords, view documentation, and see the directory structure. It also summarizes commands for file handling, searching files, editing text, and viewing system information. The document is intended as an introduction to common Linux commands and their usage.
1) The document discusses copy-number variations detected in lymphoblastoid cell lines. It notes that while cell lines allow for permanent storage, blood samples are the best source of DNA.
2) It questions whether cell line data accurately represent the DNA, or how close they are to data obtained directly from blood samples.
3) The motivation for studying copy-number variations is the advancement of DNA sequencing technology and efforts to understand rare genetic diseases, though using cell lines instead of blood introduces uncertainties.
This document summarizes a group's plans for filming the opening of a film noir project. It describes choosing isolated, abandoned locations to represent the main character's emotions. Two key locations selected are a bedroom and kitchen. Costumes and props are selected to establish the time period and mood, including a trilby hat, braces, and cracked mirror for the main character, and a black dress for the femme fatale. Potential music and sound effects are listed. Photos of potential cast members are presented. Research on film noir themes is shown from blogs. A storyboard and schedule are also referenced.
The Linux boot process involves 6 key stages:
1. The BIOS performs initial checks and loads the boot loader.
2. The boot loader like GRUB is loaded by the MBR and displays a menu to select the kernel.
3. The selected kernel is loaded into memory along with the initrd and root filesystem is mounted.
4. The kernel executes init which reads the runlevel and loads appropriate services.
5. Based on the runlevel, programs are started or shut down in sequence to start or shut down services.
6. Once booted, the Linux login prompt is displayed.
This document contains 25 multiple choice questions about street foods from around the world. Some of the questions ask about specific street foods like vada pao and jhaal muri, while others reference famous sayings, movies, or historical events related to street food culture. The questions cover a wide variety of global street foods and how they have been referenced or influenced popular culture.
www.brand-camp.com We realise that lots of entrepreneurs are struggling with how to get more clients and customers, so we have created this presentation to help you do just that! It was originally a webinar, so if you would like clarification of any points, please contact me directly.
This document provides an overview of basic Linux commands for navigation, listing directories, reading and manipulating files. It explains commands like pwd, cd, ls, cat, cp, mv, rm, mkdir to change directories, list files, read files, copy, move and delete files/directories. It also introduces the vi editor for creating new files and mentions some other miscellaneous commands like date, chmod, user management tools.
Stewart Mitchelmore and Daniel Morris propose filming a post-apocalyptic psychological thriller about a 16-year old boy named Hugo who is living alone in a deserted world until he encounters a new life form. They plan to target their film towards teenagers aged 15+ and adopt a visual style that is edgy, gritty, and maintains some humor. Daniel will serve as the director, handle sound, be the cinematographer, and boom operator. Stewart will act, manage locations, and be the editor-in-chief. They will both contribute as screenwriters.
Kawasaki disease is an autoimmune disease that causes inflammation of blood vessels throughout the body. It most commonly affects children under 5 years old, especially of Japanese and Korean descent. Signs include a persistent high fever for at least 5 days along with redness and swelling of the eyes, lips, mouth, hands, and feet. If not treated within 10 days, it can lead to heart problems such as irregular heartbeat or aneurysms of the coronary arteries. While the cause is unknown, it is thought to be due to an infectious agent and occurs most often in winter and spring. Early treatment with medicines can cure it and prevent heart damage.
This document defines and provides examples of the different types of pronouns in English:
- Personal pronouns can take different forms based on gender and whether they are subjects or objects.
- Demonstrative pronouns like this and that point out specific items. Indefinite pronouns like some and any refer to non-specific things.
- Interrogative pronouns like who, what and why are used to ask questions. Possessive pronouns like my, your and their show possession.
Problems and Potential for Open and Distance Learning in AsiaKikumaEhime
This document discusses the potential for open and distance learning in Asia. It notes that while distance education aims to overcome physical barriers, connectivity issues can still limit its reach. Developed countries are focused on expanding existing distance education methods, while underdeveloped countries see it as a way to address educational inadequacies. The document outlines challenges like differing learning styles, technology access, faculty support, and quality assurance. However, it argues that distance education continues to grow in acceptance and provides solutions to complex problems by expanding educational opportunities throughout Asia and the world.
The Ruthinian School magazine contents page summary:
The contents page has a formal and sophisticated presentation with symmetry and fluency. It only features the school logo and lacks images, suggesting the magazine solely promotes the school for parents/guardians rather than entertaining students.
King Edward VI School magazine contents page summary:
The contents page has a simple, minimalist design that breaks conventions by lacking images and color. It seems aimed at an older audience by being unexciting and focusing only on the basics required rather than attracting readers.
Bebington High School magazine contents page summary:
The contents page has a bold, artsy layout perhaps reflecting the school's subjects. It features one smiling image of
The document provides instructions on installing Linux including collecting hardware information beforehand, preparing disk partitions, installing from a CD-ROM, installing additional packages, and basic Linux commands. It also discusses uninstalling software using the synaptic graphical tool or apt-get command line tool and describes common Linux commands like mkdir, cd, ls, cp and their usage.
Teradata Corporation is an American company that sells data warehousing hardware and software. It was founded in 1979 and spun off from NCR Corporation in 2007. Teradata's products include integrated data warehouse appliances and software that allow customers to consolidate data from various sources and perform analysis. The company has over 10,000 employees and annual revenue of over $2.6 billion.
Teradata is an American company that sells analytic data platforms and related services. It was originally a division of NCR Corporation but spun off in 2007. Teradata's products consolidate data from different sources and make it available for analysis. It uses a massively parallel processing architecture that allows for linear scalability. Major customers include Walmart, AT&T, and Continental Airlines. Teradata competes with other data warehousing solutions from Oracle, IBM, and Microsoft.
The document discusses Linux/Unix interview questions and answers. It covers topics such as the GRUB bootloader, the Linux boot process, user profile files, changing the default runlevel, displaying user information with the finger command, inode numbers, increasing disk read performance, password expiration times, locking user passwords, default shells, user attributes defined in /etc/login.defs, changing the system's authentication method, modifying file attributes with chattr, network interface configuration files, changing network interface settings, the DNS configuration file, exporting NFS directories, checking open ports, soft vs hard links, setting expired passwords, restricting file insertion, displaying or killing processes accessing files/folders, killing all processes for a user, daily system analysis reports
Linux was created by Linus Torvalds in 1991 based on UNIX. It is an open source operating system with a modular design consisting of the kernel at the core which manages memory, processes, and hardware access. The shell provides a command line interface between users and the kernel while the file system arranges files in a hierarchical structure with everything treated as a file. Common directories include /bin, /sbin, /etc, /dev, /proc, /var, /tmp, /usr, /home, and help is available through man pages or command --help.
Linux Crontab allows scheduling routine jobs to run automatically in the background at specific times or days. The document provides 15 examples of cron job configurations, including running jobs daily, weekly, monthly, at startup or reboot, and during specific time ranges. It also covers viewing, editing, and installing cron jobs, as well as redirecting output and specifying environment variables. Anacron is introduced as an alternative for machines that may not be running 24/7, to better ensure scheduled jobs run as expected.
To install Red Hat Enterprise Linux 6 (RHEL 6), insert the installation DVD and boot the system. The graphical installer will launch and guide you through the installation process. This includes selecting packages, partitioning disks, setting the timezone and root password. Once installed, additional configuration steps like software updates and user account creation are completed.
This document provides a tutorial on common Linux commands. It lists commands like ls to list files, file to check file types, mkdir to make directories, cd to change directories, cp to copy, mv to move, and rm to remove files and directories. It also covers commands like cat to view file contents, grep to search files, more and less to page through large files, chown to change ownership, chmod to change permissions, ps to view processes, and kill and killall to terminate processes. The document explains that running "man [command]" provides documentation for each command.
A monolithic kernel runs all operating system services and device drivers in the kernel space of memory. This provides rich hardware access but dependencies between system components mean a bug can crash the entire system. A microkernel moves most OS services like networking and filesystems into userspace processes or "servers" that communicate through a minimal kernel. This improves modularity and stability but incurs more overhead from frequent context switches between user and kernel mode.
This document provides 50 examples of common Linux/Unix commands along with brief explanations and usage examples for each command. Some of the commands highlighted include tar, grep, find, ssh, sed, awk, vim, diff, sort, export, xargs, ls, pwd, cd, gzip, bzip2, unzip, shutdown, ftp, crontab, service, ps, top, df, kill, rm, cp, mv, cat, mount, chmod, chown, passwd, mkdir, ifconfig, and uname. The document is intended to give readers a quick start on frequently used commands.
The Filesystem Hierarchy Standard (FHS) defines the main directories and their contents in Linux operating systems, formalizing and extending the traditional BSD filesystem hierarchy. It is maintained by the Linux Foundation. The standard specifies a root directory "/" and defines the purpose and recommended contents of directories including /bin, /boot, /dev, /etc, /home, /lib, /mnt, /opt, /proc, /root, /sbin, /srv, /tmp, /usr, and /var.
The document provides 40 tips for using basic Linux command line commands and tricks. Some key points include: everything in Linux is a file; # and $ denote superuser and normal users respectively; Ctrl+Alt+F1-F6 switch between terminals while Ctrl+Alt+F7 switches to the GUI; tilde ~ denotes the user's home directory; hidden files start with dot; ls -a views hidden files; file permissions use rwx scheme; and variables can store long text for repeated use.
This document provides 15 examples of practical grep command usage in Linux/UNIX. It begins with basic uses like searching for a string in a single file or multiple files. It then demonstrates more advanced features such as ignoring case, using regular expressions to match patterns, highlighting search results, counting/inverting matches, and displaying line numbers. Overall, the examples progress from introductory to more complex uses of grep flags and operations to help both new and experienced users better utilize this powerful search tool.
25 most frequently used linux ip tables rules examplesTeja Bheemanapally
This document provides 25 examples of iptables firewall rules that can be used or modified for various needs. Some examples include allowing incoming SSH, HTTP, HTTPS from specific IP addresses or networks; allowing outgoing SSH, HTTPS; load balancing incoming web traffic; allowing ping and DNS; and allowing connections from specific networks for services like NIS, rsync, and MySQL. The rules are provided in a shell script format for easy copy/paste and use.
This document provides an introduction to using the Linux command shell and basic Linux commands. It discusses what a command shell is, the BASH shell commonly used in Linux, and how it differs from the DOS command prompt. It covers special characters, executing commands, getting help, navigating the Linux filesystem directory structure, piping and redirecting command output, and describes several common Linux commands for working with files and directories and finding files. The document is intended to accompany an instructor-led tutorial and provide a basic overview of Linux command line concepts and usage.
The kernel is the central component of most computer operating systems. It acts as a bridge between applications and hardware, managing system resources and communication. Kernels can be categorized as monolithic, micro, hybrid, or exokernel based on how operating system services are implemented. A monolithic kernel executes all services together, while a microkernel runs most in user space for modularity. Hybrid kernels combine aspects of monolithic and microkernels.
To install Red Hat Enterprise Linux 6 (RHEL 6), insert the installation DVD and boot the system. The graphical installer will launch and guide you through the installation process. This includes configuring language and keyboard settings, partitioning disks to allocate space for RHEL 6, selecting packages to install, and completing post-installation configuration steps like creating a user account. The installer partitions disks, copies files, registers the system with Red Hat Network, and enables software updates. Once complete, the system will reboot into the new RHEL 6 installation.
A monolithic kernel runs all operating system services together in the same memory space as the kernel. This provides rich hardware access but dependencies between system components mean a bug can crash the entire system. A monolithic kernel contains all core OS functions and device drivers as a single program. Modern monolithic kernels like Linux and FreeBSD can load modules at runtime to extend capabilities while minimizing kernel size.
A monolithic kernel runs all operating system services and device drivers in the kernel space of memory. This provides rich hardware access but dependencies between system components mean a bug can crash the entire system. A microkernel moves most OS services like networking and filesystems into userspace processes or "servers" that communicate through a minimal kernel. This improves modularity and stability but incurs more overhead from frequent context switches between user and kernel mode.
This document provides an overview of basic Linux commands organized into the following sections: date and time commands; file system commands; file handling commands; simple text filters like head, tail, grep; and other commands like ps, kill, cron. It describes the basic usage of commands like cal, date, echo, passwd, man, mkdir, cd, mv, cp, rm, cat, more, less, sort, grep, sed, pwd and includes examples.
This document provides 50 examples of common Linux/Unix commands along with brief explanations and usage examples for each command. Some of the commands highlighted include tar, grep, find, ssh, sed, awk, vim, diff, sort, and ls. The examples cover a wide range of tasks from compressing/extracting files to searching/editing text to managing processes and permissions.