: 4: ADM:/var/adm:/sbin/nologinApache: X: 48: 48: Apache:/var/www:/sbin/nologinBin: X: 1: 1: Bin:/bin:/sbin/nologinDaemon: X: 2: 2: daemon:/sbin/nologin# I omit a lot of output ~ According to the data above, sort is the default "sort by the first" data,# And the default type is "text! So from A to the end!Example 2: The content of/etc/passwd is separated by:. What should I do if I want to sort it in the thi
[houchangren@ebsdi-23260-oozie ~]$ sed--versionGNU sed version 4.1.5Copyright (C) 2003 Free SoftwareFoundation, Inc.This is free software; see the source forcopying conditions. There is NOwarranty; not even for MERCHANTABILITY orFITNESS FOR A PARTICULAR PURPOSE,to the extent permitted by law.How Sed instances work
Sed executes any number of user-specified edit operations (commands) on the input data ). Sed is Row-based, so
Execute commands on each line in sequence. Sed then writes the result t
12. Sort commands for Rowssort:1. Sort command-line options:
Options
Describe
-T
Separators between fields
-F
Ignore case when sorting based on character
-K
Define sorted field fields, or sort by partial data based on field fields
-M
Merges the sorted input file into a sorted output data stream
-N
Comparing fields with integer types
-O outfile
Writes output
Author: yiming GongHttp://security.zz.ha.cnDisclaimer: The above author and HTTP address must be retained for any form of excerpt
Solaris log IntroductionAssume that you are a website administrator using the Solaris operating system. One day, you accidentally saw the following similar content in the messages file on your hard disk/var/adm directory:Apr 24 20:31:04 nmssa/usr/dt/bin/rpc. ttdbserverd [405]: _ tt_file_system: findbestMountpoint -
12. Sort commands for Rowssort:1. Sort command-line options:
Options
Describe
-T
Separators between fields
-F
Ignore case when sorting based on character
-K
Define sorted field fields, or sort by partial data based on field fields
-M
Merges the sorted input file into a sorted output data stream
-N
Comparing fields with integer types
-O outfile
Writes output
What is a regular: a string of regular stringsgrep: Filter The specified keyword format: grep [-cinvabc] ' word ' filename-C line number-I is case insensitive-N Display Line number-V Take reverse-R Traverse All subdirectories-A followed by a number to filter out rows that meet the requirements and the following n rows-B followed by numbers, filtering rows that meet the requirements and n rows above-C followed by a number, while filtering out the rows that meet the requirements and the top and bo
method combines OOAD, BPM, and EA principles in the best way, and incorporates some innovative principles. Figure 2 shows the Soad resources (principles and technologies) of this new method ):EADeveloping enterprise applications and IT infrastructure into SOA may be a huge burden, affecting multiple business lines and organizational units. Therefore, the EA framework and reference architecture (such as the open organization architecture framework, the Open Group architecture framework,
important, the most critical, this is the new Year should be in the first place.Ii. direction of development everyone has their own personal future, which determines the nature of the training courses you want to choose. Especially related to the occupations to be undertaken. such as project management, product management, product research and development management, business analysis, business needs management, process management, etc. can be from the occupation or related professional busine
The building code stipulates that the bedroom window should be at least 30 inches high, 20 inches long, so that in the event of a fire, the person can pass; The yellow seat on the bus is for the old and the sick, and the child is often said to be free, but it must intervene for safety. These are the principles of life that need to be obeyed. When it comes to architecture, does it need to follow some principles? What is the use of these principles? What are the principles? Principle of this conce
the network, or even open an Active Directory object (that is, a site, domain, or organizational unit. This was previously not possible with the "System Policy Editor" tool.
The basic principles of system policies and group policies are to modify the corresponding configuration items in the Registry to achieve the purpose of configuring the computer, but some of their operating mechanisms have changed and expanded.
2. Management Templates in group policies
The Windows 2000/XP/2003 director
Linux sed usageSED usageSed is an online editor that processes a single line of content at a time. When processing, stores the currently processed rows in a temporary buffer, called the pattern spaceThe contents of the buffer are then processed with the SED command, and the contents of the buffer are sent to the screen after processing is completed. Then the next line is processed, so it repeats until the end of the file.The file content does not change unless you use redirection to store the ou
sort command, sort lines of text filesFunction: Sorts the text content according to the specified order, and displays its contents on standard output, default sort filename Indicates the default first character, in ascending view of the file,SyntaxSort Options FileName"Common Options"-R, which indicates that the file is viewed in descending order by the first character (reverse)-F,--ignore-case: Indicates ignoring case, Linux system default case-to-,--FIELD-SEPARATOR=SEP: Indicates the specified
parameters to get each time will be determined according to the command's options and the corresponding tunable parameters in the system kernel.Take a look at how the Xargs command is used with the Find command, and give some examples.The following example finds every normal file in the system, and then uses the Xargs command to test what type of file they belong toFind. -type F-print | Xargs file./.kde/autostart/autorun.desktop:utf-8 Unicode 中文版 Text./.kde/autostart/.directory:iso-8859 text ..
Rhel/centos introduced a new set of system tuning tools Tuned/tuned-adm after the 6.3 release, wherein tuned is a service-side program used to monitor and collect data from various components of the system and dynamically adjust the system settings according to the information provided by the data to achieve the purpose of dynamic optimization system; Tuned-adm is a client program that deals with tuned and
implement. What are the clear results you want to achieve? Is it making money? Or to improve health? Or is it necessary to expand interpersonal relationships?
Find out why you need it and ask yourself some questions:
Why do I have to make this decision in my life?
What will my life look like if I don't have it?
Is there anyone around me affected by this decision? How much do I care about them? How much will they suffer if I don't do this?
Apply the power of "why"
This article mainly introduces some practical JavaScript file compression and decompression library recommendations on GitHub. We recommend that you all support zip format, for more information, see the existing folder of archive and unarchive in the project. when looking for a solution, I tried some popular libraries, including adm-zip, JSZip and archiver.
I. Use adm-zipAdm-zip supports the archive and un
and deleting", playing the SED is one of the essential to write automation scripts.SED command print file information (query):Copy CodeThe code is as follows:# # # #用sed打印文件的信息的例子的命令 ######Sed-n '/^#/!p '/etc/vsftpd/vsftpd.confSed-n '/^#/! {/^$/!p} '/etc/vsftpd/vsftpd.confSed-e '/^#/d '-e '/^$/d '/etc/vsftpd/vsftpd.confSed-n ' 1,/adm/p '/etc/passwdSed-n '/adm/,6p '/etc/passwdSed-n '/
: Insert, I can be followed by the string, and these strings will appear on a new line (the current line);P: Print, that is, print out a selected material. Normally p will work with parameter Sed-n ~S: Replace, can be directly replaced by work! Usually this s action can be paired with formal notation! For example 1,20s/old/new/g is!InstanceAdd a row after the fourth line of the passwd file and output the result to standard output, and at the command prompt, enter the following command:sed ' 4ath
Some practical JavaScript file compression and decompression libraries on GitHub are recommended.
Archive and unarchive existing folder are used in the project. when looking for a solution, we tried some popular libraries, including adm-zip, JSZip, and archiver.
I. Use adm-zipAdm-zip supports the archive and unarchive functions of one or more files or the entire folder, which is very simple and convenient t
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