Command not found solution

Preface: To update the code, the GUI on the server failed, $ patch_delivery_gui, error: patch_delivery_gui:
command not found, the same problem happened last time when editing TA.

Wrote a script: This script will first check whether the ifconfig, firewall-cmd and vim commands are available. If not, try to install the corresponding software package. Then, it displays the network interface information. If an error occurs during installation, the appropriate error message will be displayed and the script will exit.

#!/bin/bash

# Check if ifconfig command is available
if ! command -v ifconfig &> /dev/null; then
    echo "ifconfig command not found. Trying to install net-tools package..."
    
    # Install net-tools package
    if sudo yum install -y net-tools; then
        echo "net-tools package installed successfully."
    else
        echo "Failed to install net-tools package. Please check your internet connection and try again."
        exit 1
    fi
fi

# Check if firewall command is available
if ! command -v firewall-cmd &> /dev/null; then
    echo "firewall-cmd command not found. Trying to install firewalld package..."
    
    # Install firewalld package
    if sudo yum install -y firewalld; then
        echo "firewalld package installed successfully."
    else
        echo "Failed to install firewalld package. Please check your internet connection and try again."
        exit 1
    fi
fi

# Check if vim command is available
if ! command -v vim &> /dev/null; then
    echo "vim command not found. Trying to install vim-enhanced package..."
    
    # Install vim-enhanced package
    if sudo yum install -y vim-enhanced; then
        echo "vim-enhanced package installed successfully."
    else
        echo "Failed to install vim-enhanced package. Please check your internet connection and try again."
        exit 1
    fi
fi

# Display network interface information
echo "Network Interface Information:"
ifconfig

parse

ifconfig

Two solutions:

Install toolkit directly

yum install net-tools

If you want to solve the problem in a more concise way, you can directly install ifconfig using the following command:

yum install -y net-tools

This command will directly install the net-tools package, which contains the ifconfig command. Use -ythe option to answer all prompts automatically and avoid manual confirmation.

In addition, you can also search for the installation package location of the ifconfig command by executing the following command:

yum search ifconfig

This command will list package information related to ifconfig, including package name and description. You can choose the appropriate package to install based on the search results.

Insert image description here

2. Check ifconfig matches the net-tools.x86_64 package and install the net-tools.x86_64 package
Insert image description here

3. After the installation is complete, you can use the following command to view the network card information:

ifconfig

After executing this command, detailed information about all available network interfaces on the system will be displayed, including IP addresses, network masks, broadcast addresses, etc. You can view and analyze this information in a terminal window.
Insert image description here

firewall

Insert image description here

If you want to install the firewalld firewall service, you can use the following command to install it:

yum install -y firewalld

This command will automatically download and install the firewalld package. Use -ythe option to answer all prompts automatically and avoid manual confirmation. Once the installation is complete, you can start configuring and managing firewall rules.

vim

Insert image description here

If you execute the command rpm -qa|grep vimand three results are returned, it means that you have installed the following three Vim-related software packages:

1. vim-minimal-7.0.109-6.el5
2. vim-common-7.0.109-7.2.el5
3. vim-enhanced-7.0.109-7.2.el5

This means that Vim is installed correctly on your system. If one of these records is missing, one or more Vim packages have not been installed.

If you are missing a certain record (such as vim-enhanced), you can install the package separately using the following command:

yum -y install vim-enhanced

If you want to reinstall all Vim related packages, you can use the following command:

yum -y install vim*

This will install all packages starting with "vim", ensuring you have a complete Vim installation.