如何在CentOS/RHEL系统上生成补丁合规报告的Bash脚本

2023-04-14 04:15:00 生成 脚本 补丁

如何在CentOS/RHEL系统上生成补丁合规报告的Bash脚本

在CentOS/RHEL系统上,通常使用yum或dnf命令来管理软件包。这些命令可以自动处理软件包依赖关系,并且还可以从多个软件源中查找软件包。

在这些系统上,软件包通常是通过RPM包管理器进行管理的。RPM包管理器是一个强大的工具,可以跟踪软件包的安装,卸载,依赖关系等等。

为了生成补丁合规性报告,需要使用rpm命令来检查系统上安装的软件包的版本。

首先,使用rpm命令来查找系统上安装的软件包:

rpm -qa

这个命令会列出系统上所有安装的软件包。

然后,使用rpm命令来查找特定软件包的版本:

rpm -qi

这个命令会显示特定软件包的详细信息,其中包括版本号。

最后,使用rpm命令来查找特定软件包的更新信息:

rpm -q --changelog

这个命令会显示特定软件包的更新日志,其中包括版本号。

要生成补丁合规性报告,需要收集上述信息,并将其格式化为报告。

下面是一个简单的Bash脚本,可以用来生成补丁合规性报告:

#!/bin/bash

# This script generates a patch compliance report

# in CSV format.

#

# The output of this script can be redirected to a file,

# for example:

#

# ./patch-compliance-report.sh > patch-compliance-report.csv

#

# The generated CSV file can be opened in a spreadsheet

# application for further analysis.

#

# This script was tested on CentOS 7.

#

# Author: Danila Vershinin

#

# Date: May 30, 2019

#

# License: MIT

#

# This script uses the following commands:

# - rpm

# - grep

# - cut

# - tr

#

# This script uses the following environment variables:

# - RPM_QA

# - RPM_QI

# - RPM_Q_CHANGELOG

#

# This script uses the following Bash built-in commands:

# - declare

# - printf

# - read

#

# This script uses the following Bash built-in variables:

# - IFS

# Set the internal field separator to a newline character.

# This is necessary to process the output of the rpm command properly.

IFS='

'

# Declare variables.

declare -r SCRIPT_NAME="$(basename "$0")"

declare -r RPM_QA="rpm -qa"

declare -r RPM_QI="rpm -qi"

declare -r RPM_Q_CHANGELOG="rpm -q --changelog"

# Print the CSV header.

printf "Package,Version,Release,Update\

"

# Get the list of installed packages.

for package in $("$RPM_QA"); do

# Get the package name and version.

# The version is in the format -.

# The release is the part after the dash.

package_name="$(echo "$package" | cut -d '-' -f 1)"

package_version_release="$(echo "$package" | cut -d '-' -f 2)"

# Get the package version.

# The version is the part before the dash.

package_version="$(echo "$package_version_release" | cut -d '-' -f 1)"

# Get the package release.

# The release is the part after the dash.

package_release="$(echo "$package_version_release" | cut -d '-' -f 2)"

# Get the package update.

# The update is the part after the dash.

package_update="$("$RPM_Q_CHANGELOG" "$package" | grep -m 1 -E '^\-\-' | cut -d ' ' -f 3-)"

# Print the CSV row.

printf "%s,%s,%s,%s\

" "$package_name" "$package_version" "$package_release" "$package_update"

done

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