1. Install and configure Mosquitto
1. yum install Mosquitto
yum< /span> install epel-release -y
yum search mosquitto
yum install mosquitto-devel mosquitto -y pre> 2. Configuration Mo
Category: OS
Operating System (Operating System, referred to as OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic system software that runs directly on the “bare metal”. Any other software must be supported by the operating system to run .
OpenStack Stein installation (1)
? 192.168.205.7: as Chrony, DNS and YUM Source server (for faster installation, build your own yum source)
? 192.168.205.147: as DataBase, install MariaDB, RabbitMQ, Memcached? 192.168.205.167: as
Windows 10 Technical Preview Download and Installation
Windows 10 Technical Preview download and installation
Windows 10 is Microsoft’s new operating system, and its concepts include
Windows 10 devices include
From Developer’s perspec
Regular expressions – Split a number with a number in R
How to split a string containing numbers (unknown digits) into two strings-the number and the rest of the string. Please note that there may be other undesirable characters in the string The number
Regular expression – regular expression moves the beginning of the string to the end in Notepad
I have a text file like this:
marc_webber
john_grisham
rahmin_darfur
firstname_lastname I want to output something like this (forget the double name like “van These”):
Webber, Marc, mar
Shell-06 function
Shell-06 function #Write a script, use the chkconfig command, loop execution, and close all 5 levels of services
#!/bin/bash
name=`chkconfig –list | cut -d’ ‘ -f1`
for i in [name
Shell exercise-18
Question requirementsprompt the user to enter the name of the network card, and then we use the script to output the ip of the network card, we need to consider the following questions:
?
#!
Day001 – Construction of the Python environment under Windows
1. Python download
1. The latest Python source code, binary files, news, etc. can be viewed on the Python official website:
2. Python official website: https://www .python.org/
3. You
Bash scripting “[!: Not found” error, and how to write or declare
Edit:
This is my updated code:
#!/bin/sh
files=`ls`
if [$# -ne 1 -o -f $1 ]
then
echo “Usage: $0 ”
exit 1
fi
if [! -e $1 ]
then
echo “$1 not found”
exit 1
elif [-d $1 ]then
cd $1
for f
Regular expression – Which regular expressions I should use in Common Lisp?
I am trying to learn Common Lisp and want to use regular expressions to parse text files. Which library is the easiest to use for a beginner like me? Am I correct to assume that it depends on the C