linux scripting books

Tags: GPO discard Linu related Extensions inux programming system interfaceThe UNIX environment Advanced programming terminology is many, the concept content, also many, but the study concept nature, the standard rule class thing, presumably is this--needs to expand the content many.Linux programming, illustrated, the code is sufficient enough, it seems that the difficulty can also be felt.Linux program Design This book, is my first contact, because want to study the pure back end of things, so

The first part of the Linux command lineThe 1th chapter of the first knowledge of Linux she1.1 What is Linux 21.1.1 Deep Dive into Linux kernel 31.1.2 GNU Tools 61.1.3 Linux Desktop Environment 81.2 Linux Release 121.2.1 Core

This article was translated from Isystemadmin, "List of Popular Scripting Languages for Linux and Windows."A system administrator with scripting Knowledge has a distinct distinction from other system administrators. A script is an art created by a "system administrator". This art requires knowledge of the system itself, the syntax of system administration command

directly behind the. BASHRCfunction Addem{Echo $[$ [+ $]}This function is used anywhere on the system.2. Reading function filesYou can use the source command to add a function from the library file to the. BASHRCAdd it directly behind the. BASHRC. /home/xcy/myfuncsSo you can use the function inside the Myfuncs.17.8 exampleThis section describes the GNU Shtool Shell script function library. The Shtool library provides a few simple shell scripting libr

From a programmer's point of view, the shell itself is a program written in C language, from the user's point of view, the shell is the user and the Linux operating system communication Bridge. Users can either enter command execution and use shell scripting to accomplish more complex operations. In the Linux GUI increasingly perfect today, in the system manageme

Basics of Linux Shell scripting here we first talk about the shell of the basic syntax, the beginning, comments, variables and environment variables, to do a basic introduction, although not related to specific things, but lay the foundation is to learn easily after the premise. 1. Linux Scripting Basics Basic Introduc

Linux system startup process and scripting (3)1. Special variable values${variable argument #* character} means left to right, with "character" as the delimiter, taking all strings after the first delimiter${variable argument ##* character} means left to right, with "character" as the delimiter, taking all strings following the last delimiter${variable parameter% character *} means right-to-left, with "char

to customize their command aliases and private script functions3. non-interactive shellThis is the shell used by the system to execute shell scripts.There is no command line prompt.Bash shell provides bash_env environment variables. When a non-interactive shell is started, bash_env is checked to see the startup file to be executed. If so, the shell executes the commands inside. This typically includes shell scripting variable settings.My computer doe

echo "Top Ten Disk Space Usage" echo "for $CHECK _directories Directory" For Dir_check in $CHECK _directories Do echo "" echo "The $DIR _check Directory:" Du-s $DIR _check 2>/dev/null | Sort-rn | Sed ' {one, $D; =} ' | Sed ' N; s/\n//' | Gawk ' {printf $ ': "\ T" $ "t" $ "\ n"} ' Done Exit [Email protected]:~/shell/24zhang$ Run:./big_user.shOnly two directories/var/log/home are specified above, and the generated report is disk_space_$date.rpt here.This script

TopicShell Scripting Knowledge points: What are trap signals in Linux system scripts and how are they used?Reference answer: "Trap signal Command description"The trap command is used to specify the actions to be taken after a signal is received, and a common use of the trap command is to complete the cleanup work when the script is interrupted.Historically, the shell always used numbers to represent the sig

login)"※ specific configuration, please see SSH certificate Login method (no password Authentication login)2. Edit the Crontab file※crontab is a command under Linux, located in/etc/crontab, used to execute the specified script at a specified time, i.e., timed to a task.If you set the script in cron.daily to execute 1:00 every day:XX 1 * * * Root run-parts/etc/cron.daily3. Edit the Automatic backup scriptPut the script in the/etc/cron.daily/directory

Guide As is known to all, system administrators need to be proficient in a scripting language, and the job requirements listed by the recruiting organization will also be written. Most people think that Bash (or other shell language) is handy, but some powerful languages (like Python) can give you some other benefits. First, we'll use Python's command-line tools, and we'll be exposed to Python's object-oriented features (the latter par