摘要：
###################RPM_CHECK1################# -->仅仅是检查单个rpm包是否安装，未安装的不能自动安装
#!/bin/bash
# check rpm is installed or not
uname -r
rpm --version echo
P=${1?" must specify package name."} rpm -qa "$P" > t1
my_size=$( wc -l < t1 )
echo " Size of report file is $my_size 阅读全文