卸載軟件包

1、卸載使用yum命令卸載軟件包

在CentOS系統中，卸載我們可以使用yum命令來(lái)卸載軟件包，卸載我們需要打開(kāi)終端并輸入以下命令以獲取root權限：

sudo su

接下來(lái)，卸載我們可以使用以下命令來(lái)卸載一個(gè)已安裝的卸載軟件包，我們要卸載httpd軟件包：

yum remove(′?｀*) httpd

如果要卸載多個(gè)軟件包，卸載只需在命令后添加它們的卸載名字，用空格隔開(kāi)即可，卸載我們要卸載httpd和mysql-server軟件包：

yum remove httpd mysql-server

2、卸載徹底刪除軟件包及其配置文件

我(′?ω?`)們可能需要徹底刪除一個(gè)軟件??包及其配置文件，卸載為此，卸載我們可以在yum remove命令后添加–remove-leaves參數：

yum remove --remoヽ(′ー｀)ノve-leaves httpd mysql-server

這將刪除httpd和mysql-server軟ˉ\_(ツ)_/ˉ件??包以及它們的配置文件，請注意，這可能會(huì )導致系統中的其他程序出現問(wèn)題，因此請謹慎使用。

環(huán)境部署

1、更新系統并安裝必要的依賴(lài)包

在進(jìn)??行環(huán)ヽ(′▽?zhuān)?/境部署之前(qian)，我們需要確保系統的軟件包都( ?▽?)是最新的，為此，我們可以使用以下命令來(lái)更新系統：

yum update

接下來(lái)，我們可以安裝一些必要的依賴(lài)包，我們可以安裝wget和curl工具：

yum install wget curl -y

2、配置防火墻和SELinux(可選)

在進(jìn)??行環(huán)境部署時(shí)，??我們可能需要對系統的防火墻和SELinux進(jìn)行一些配置，我們可以啟用并配置firewalld防火墻：

systemctl start firewalld && systemctl enable firewalld && firewall-cmd --permanent --add-service=http && firewall-cmd --permanent --add-service=https && firewall-cm(╯‵□′)╯d --reload

我們可以禁用SELinux(如果不需要的話(huà)):

setenf??orce 0 && sed -i 's/^SELINUX=enforcing$/SELINUX=disabled='disabled'/g' /etc/sel┐(′д｀)┌inux/config && systemctl restart selinux-policy || exit $? && systemctl restart systemd-journald || exit $? &&am??p; yum clea(′▽?zhuān)?)n all && yum makecache fast && reboot -f now || exit $?

相關(guān)問(wèn)題與解答

1、如何查看已安裝的軟件包？

答：可以使用以下命令查看已安裝的軟??件包：

rpm -qa | grep installed

2、如何查找一個(gè)軟件包的版本信息？

答：可以使用以下命令查找一個(gè)軟件包的版本信息：

rpm -q --whatprovides package_name | gre(???)p Version | cut -d: -f2 | xargs echo -n( ?▽?) " " | tr "" " " | sed &quo??t;s/ //g"ヾ(?■_■)ノ; | tr " " "" | sort -Vr | head -n 1000 | tail -n +2000 | xargs rpm -qIp --queryformat '%{ VERSION}' | sort -u | uniq -c | sort -rnk3 | head -n1000 | tail -n+2000 | xargs rpm -qIp --q??ueryformat '%{ VERSION}' | sort -u | uniq -c | sort -rnk3 | head -n1000 | tail -n+2000 || exit $?; yum info package_name || exit $?; yum list provided package_name || exit $?; yum search package_name || exit $?; yum whatprovides package_name || exit $?; yum repolist all | grep package_name || exit $?; yum list installed package_name || exit $?; yum list installed packages | grep package_name || exit $?; yum list installed files | grep package_name || exit $?; yum list ins??talled headers | grep package_name || exit $?; yum list installed groups | grep package_name || exit $?; yum list installed metad(??-)?ata | grep package_name || exit $?; yum list installed?? provides package??_name || exit $?; yum list inst┐(′ー｀)┌alled reverse provides package_name || exit $?; yum list installed triggers | grep package_name || exit $?; yum list in??stalled trust updates for package_name || exit $?; yum list installed trust and verify files for package_name || exit $?; yum list installed verifyscripts for packag??e_name || exit $?; yum list installed xmllint files for package_name || exit $?; yum list installed xmllint modules for package_name || exit $?; yum provides package_name || exit $?; yum query provides package_name || exit $?; yum versionpackage_name || exit $?; yum whatprovides package_name || exit $?; yum whyprovides package_name || exit $?; yum whereis package_name || exit $?; wh??ich rpmbuild || ex(′?_?`)it $?; which rpmd( ?° ?? ?°)evtools || exit $?; which rpmlint || exit $?; which rpmsigningkeygen || exit $?; which rpmverify || exit $?;(′?｀*) which rpm --version || exit $?; which rpm --whatprovides package_name || exit $?; which rpm --whereis package_name || exit $?; which rpm --whichpackage_name || exit $?; which rpm --wh??ichpackagefile_paths?? package_name?? || exit $?; which rpm --whereˉ\_(ツ)_/ˉispackag??e file_path &&(??ヮ?)?*:???amp; find _ /usr/lib64/python??*/site-packages/pkgconfig/*.pc && find _ /usr/lib64/pyt(?????)hon*/site-packages/setuptools*.egg && find _ /usr/lib64/python*/distutils*.cfg &am( ?▽?)p;& find _ /usr/lib64/python*/distutils*.py && find _ /usr/lib64/pytho??n*/distutils*.so && find _ /usr/lib64/python*/distutils*.so.* && find _ /usr/lib64/python*/distutils*.pyc && find _ /usr/lib64/python*/distutils*.pyo && find _ /usr/lib64/py??thon*/distutils*.pyd && find _ /usr/lib64/python*/distutils*.pyc *.so *.py *.pyc *.so.* *.py??o *.pyd *.pyc *.so *.py *.pyc *.so.* *.pyo *.pyd *.pyc *.so *.py *.pyc *.so.* *.pyo *.??pyd *.pyc *.so *.py *.pyc *.so.* *.pyo *.pyd *.pyc *.so *.py *.pyc *.so.* *.pyo *.pyd *.pyc *.so *.py *.pyc *.so.* *.pyo *.pyd *.pyc *.so *.py *.pyc *.so.* *.pyo *.pyd *.py??c *.so *.py *.pyc *.so.* *.pyo *.pyd *