Category: Unix

The UNIX operating system (Eunice) is a powerful multi-user, multi-tasking operating system that supports multiple processor architectures. According to the classification of the operating system, it is a time-sharing operating system. It was first developed by KenThompson, Dennis Ritchie and Douglas McIlroy in 1969 Developed in AT&T’s Bell Labs in the year. At present, its trademark rights are owned by the International Open Standards Organization, and only UNIX systems that conform to a single UNIX specification can use the name UNIX, otherwise it can only be called UNIX-like (UNIX-like)

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

October 18, 2021By Simo Unix installation, one, OpenStack, SteinLeave a Comment

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

October 18, 2021By Simo Unix function, shellLeave a Comment

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:
?

October 18, 2021By Simo Unix exercise, shellLeave a Comment

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