yum查詢功能

1. 查詢選項：

   [root@kvm10 ~]# yum [options] [command] [package ...]
   [option]：主要的搜尋選項有：
   [查詢工作項目] [相關參數]：這方面的參數有：
     search  ：搜尋某個套件名稱或是描述 (description) 的重要關鍵字；
     list    ：列出目前 yum 所管理的所有的套件名稱與版本，有點類似 rpm -qa；
     info    ：列出套件的相關訊息，類似 rpm -qai 的執行結果；
     provides or whatprovides：搜尋包含某檔案的套件，類似 rpm -qf 的功能。
   

2. 查詢名稱或是描述中包含關鍵字cjk的套件

   [root@kvm8 ~]# yum search cjk
   Last metadata expiration check: 1:08:41 ago on Fri 22 Oct 2021 03:38:02 PM CST.
   ========================= Name & Summary Matched: cjk ==========================
   texlive-cjk.noarch : CJK language support
   texlive-xecjk.noarch : Support for CJK documents in XeLaTeX
   google-noto-cjk-fonts-common.noarch : Common files for Noto CJK fonts
   google-noto-sans-cjk-ttc-fonts.noarch : Sans OTC font files for
                                         : google-noto-cjk-fonts
   google-noto-serif-cjk-ttc-fonts.noarch : Serif OTC font files for
                                          : google-noto-cjk-fonts
   ============================= Summary Matched: cjk =============================
   bitmap-fangsongti-fonts.noarch : Selected CJK bitmap fonts for Anaconda
   bitmap-lucida-typewriter-fonts.noarch : Selected CJK bitmap fonts for Anaconda
   texlive-garuda-c90.noarch : TeX support (from CJK) for the garuda font
   texlive-norasi-c90.noarch : TeX support (from CJK) for the norasi font in
                             : thailatex
   

3. 查看套件google-noto-cjk-fonts-common的相關訊息

   [root@kvm8 ~]# yum info google-noto-cjk-fonts-common.noarch
   Last metadata expiration check: 1:09:42 ago on Fri 22 Oct 2021 03:38:02 PM CST.
   Available Packages
   Name         : google-noto-cjk-fonts-common
   Version      : 20190416
   Release      : 1.el8
   Architecture : noarch
   Size         : 20 k
   Source       : google-noto-cjk-fonts-20190416-1.el8.src.rpm
   Repository   : App
   Summary      : Common files for Noto CJK fonts
   URL          : https://github.com/googlei18n/noto-cjk
   License      : OFL
   Description  :
                : Noto CJK fonts, supporting Simplified Chinese, Traditional
                : Chinese, Japanese, and Korean. The supported scripts are Han,
                : Hiragana, Katakana, Hangul, and Bopomofo. Latin, Greek, Cyrllic,
                : and various symbols are also supported for compatibility with CJK
                : standards.
                :
                :
                : Common files for Google Noto CJK fonts.
   

4. 列出所有evince開頭的套件

   [root@kvm8 ~]# yum list evince*
   Last metadata expiration check: 1:10:38 ago on Fri 22 Oct 2021 03:38:02 PM CST.
   Available Packages
   evince.x86_64                                 3.28.4-4.el8                   App
   evince-browser-plugin.x86_64                  3.28.4-4.el8                   App
   evince-libs.i686                              3.28.4-4.el8                   App
   evince-libs.x86_64                            3.28.4-4.el8                   App
   evince-nautilus.x86_64                        3.28.4-4.el8                   App
   

5. 列出可升級的evince開頭的套件，套件庫中只有一個版本，所以查不到更新版本。

   [root@kvm10 ~]# yum list updates evince*
   Loaded plugins: fastestmirror, refresh-packagekit
   Loading mirror speeds from cached hostfile
   Error: No matching Packages to list
   

6. 列出包含檔案bin/evince的所有套件，例如/usr/bin/evince。

   [root@kvm8 ~]# yum provides *bin/evince
   Last metadata expiration check: 1:19:56 ago on Fri 22 Oct 2021 03:38:02 PM CST.
   evince-3.28.4-4.el8.x86_64 : Document viewer
   Repo        : App
   Matched from:
   Other       : *bin/evince