linux的yum命令
linux的yum命令
Linux系統(tǒng)下yum是一個(gè)shell前段軟件包管理器,下面由學(xué)習(xí)啦小編為大家整理了linux的yum命令的相關(guān)知識(shí),希望大家喜歡!
linux的yum命令詳解
yum( Yellow dog Updater, Modified)是一個(gè)在Fedora和RedHat以及SUSE中的Shell前端軟件包管理器。
基於RPM包管理,能夠從指定的服務(wù)器自動(dòng)下載RPM包并且安裝,可以自動(dòng)處理依賴(lài)性關(guān)系,并且一次安裝所有依賴(lài)的軟體包,無(wú)須繁瑣地一次次下載、安裝。
yum提供了查找、安裝、刪除某一個(gè)、一組甚至全部軟件包的命令,而且命令簡(jiǎn)潔而又好記。
yum 語(yǔ)法
yum [options] [command] [package ...]
options:可選,選項(xiàng)包括-h(幫助),-y(當(dāng)安裝過(guò)程提示選擇全部為"yes"),-q(不顯示安裝的過(guò)程)等等。
command:要進(jìn)行的操作。
package操作的對(duì)象。
yum常用命令
1.列出所有可更新的軟件清單命令:yum check-update
2.更新所有軟件命令:yum update
3.僅安裝指定的軟件命令:yum install
4.僅更新指定的軟件命令:yum update
5.列出所有可安裝的軟件清單命令:yum list
6.刪除軟件包命令:yum remove
7.查找軟件包 命令:yum search
8.清除緩存命令:
yum clean packages: 清除緩存目錄下的軟件包
yum clean headers: 清除緩存目錄下的 headers
yum clean oldheaders: 清除緩存目錄下舊的 headers
yum clean, yum clean all (= yum clean packages; yum clean oldheaders) :清除緩存目錄下的軟件包及舊的headers
linux的yum命令實(shí)例
實(shí)例 1
安裝 pam-devel
[root@www ~]# yum install pam-devel
Setting up Install Process
Parsing package install arguments
Resolving Dependencies <==先檢查軟件的屬性相依問(wèn)題
--> Running transaction check
---> Package pam-devel.i386 0:0.99.6.2-4.el5 set to be updated
--> Processing Dependency: pam = 0.99.6.2-4.el5 for package: pam-devel
--> Running transaction check
---> Package pam.i386 0:0.99.6.2-4.el5 set to be updated
filelists.xml.gz 100% |=========================| 1.6 MB 00:05
filelists.xml.gz 100% |=========================| 138 kB 00:00
-> Finished Dependency Resolution
……(省略)
實(shí)例 2
移除 pam-devel
[root@www ~]# yum remove pam-devel
Setting up Remove Process
Resolving Dependencies <==同樣的,先解決屬性相依的問(wèn)題
--> Running transaction check
---> Package pam-devel.i386 0:0.99.6.2-4.el5 set to be erased
--> Finished Dependency Resolution
Dependencies Resolved
=============================================================================
Package Arch Version Repository Size
=============================================================================
Removing:
pam-devel i386 0.99.6.2-4.el5 installed 495 k
Transaction Summary
=============================================================================
Install 0 Package(s)
Update 0 Package(s)
Remove 1 Package(s) <==還好,并沒(méi)有屬性相依的問(wèn)題,單純移除一個(gè)軟件
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Erasing : pam-devel ######################### [1/1]
Removed: pam-devel.i386 0:0.99.6.2-4.el5
Complete!
實(shí)例 3
利用 yum 的功能,找出以 pam 為開(kāi)頭的軟件名稱(chēng)有哪些?
[root@www ~]# yum list pam*
Installed Packages
pam.i386 0.99.6.2-3.27.el5 installed
pam_ccreds.i386 3-5 installed
pam_krb5.i386 2.2.14-1 installed
pam_passwdqc.i386 1.0.2-1.2.2 installed
pam_pkcs11.i386 0.5.3-23 installed
pam_smb.i386 1.1.7-7.2.1 installed
Available Packages <==底下則是『可升級(jí)』的或『未安裝』的
pam.i386 0.99.6.2-4.el5 base
pam-devel.i386 0.99.6.2-4.el5 base
pam_krb5.i386 2.2.14-10 base