shell---rpm

[root@master src]# rpm -qpl epel-release-latest-6.noarch.rpm         ##查询该rpm包安装了什么
warning: epel-release-latest-6.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY
/etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
/etc/rpm/macros.ghc-srpm
/etc/yum.repos.d/epel-testing.repo
/etc/yum.repos.d/epel.repo
/usr/share/doc/epel-release-6
/usr/share/doc/epel-release-6/GPL

[root@master src]# rpm -qpi epel-release-latest-6.noarch.rpm           ##查询该包的一些信息
warning: epel-release-latest-6.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY
Name : epel-release Relocations: (not relocatable)
Version : 6 Vendor: Fedora Project
Release : 8 Build Date: Mon 05 Nov 2012 11:54:41 AM CST
Install Date: (not installed) Build Host: buildvm-05.phx2.fedoraproject.org
Group : System Environment/Base Source RPM: epel-release-6-8.src.rpm
Size : 22169 License: GPLv2
Signature : RSA/8, Mon 05 Nov 2012 11:29:49 PM CST, Key ID 3b49df2a0608b895
Packager : Fedora Project
URL : http://dl.fedoraproject.org/pub/epel/
Summary : Extra Packages for Enterprise Linux repository configuration
Description :
This package contains the Extra Packages for Enterprise Linux (EPEL) repository
GPG key as well as configuration for yum and up2date.

[root@master src]# rpm -i --test jdk-7u79-linux-x64.rpm        # 查询rpm包是否可以被安装.
package jdk-2000:1.7.0_79-fcs.x86_64 is already installed
installing package jdk-2000:1.7.0_79-fcs.x86_64 needs 195MB on the / filesystem
[root@master src]# echo $?
1

代码：

 #!/bin/bash
 # rpm-check.sh

 # 这个脚本的目的是为了描述, 列表, 和确定是否可以安装一个rpm包.
 # 在一个文件中保存输出.
 #
 # 这个脚本使用一个代码块来展示.

 SUCCESS=
 E_NOARGS=

 if [ -z "$1" ]
 then
   echo "Usage: `basename $0` rpm-file"
   exit $E_NOARGS
 fi

 {
 echo
 echo "Archive Description:"
 rpm -qpi $ # 查询说明.
 echo
 echo "Archive Listing:"
 rpm -qpl $ # 查询列表.
 echo
 rpm -i --test $ # 查询rpm包是否可以被安装.
 if [ "$?" -eq $SUCCESS ]
 then
   echo "$1 can be installed."
 else
   echo "$1 cannot be installed."
 fi
 echo
 } > "$1.test" # 把代码块中的所有输出都重定向到文件中.

 echo "Results of rpm test in file $1.test"

 # 查看rpm的man页来查看rpm的选项.

 exit 

###########################shell 数组###################

[root@master ~]# Array[1]=slot_1
[root@master ~]# echo ${Array[1]}
slot_1
[root@master ~]# echo ${Array[*]}
slot_1
[root@master ~]# Array[2]=slot_2
[root@master ~]# echo ${Array[*]}
slot_1 slot_2
[root@master ~]# echo ${Array[2]}
slot_2