Linux的打印rpm包的详细信息的shell脚本

#!/bin/bash

# list a content summary of a number of RPM packages
# USAGE: showrpm rpmfile1 rpmfile2 ...
# EXAMPLE: showrpm /cdrom/RedHat/RPMS/*.rpm
for rpmpackage in "$@"; do
   if [ -r "$rpmpackage" ];then
      echo "=============== $rpmpackage =============="
      rpm -qi -p $rpmpackage
   else
      echo "ERROR: cannot read file $rpmpackage"
   fi
done

　　

 ./showrpm.sh a2ps-4.14-10.1.el6.i686.rpm  abrt-addon-vmcore-2.0.8-15.el6.centos.x86_64.rpm a2ps-4.14-10.1.el6.x86_64.rpm

　　运行结果：

这里出现了第二个特殊变量$@，该变量包含有输入的所有命令行参数值。如果你运行showrpm openssh.rpm w3m.rpm webgrep.rpm，那么 "$@"(有引号) 就包含有 3 个字符串，即openssh.rpm, w3m.rpm和 webgrep.rpm。 $*的意思是差不多的。但是只有一个字串。如果不加引号，带空格的参数会被截断。