查找程序依赖库的脚本

#!/bin/sh

usage()
{
        echo "********************************************"
        echo "it's for search libs that program depeend"
        echo "usage: sh search_depeend_libs xxx"
        echo "eg: sh search_depend_libs rdesktop"
        echo "********************************************"
        exit
}

num=$#
if [ ${num} != 1 ];then
        usage
fi


mkdir libs
LIBS=`ldd $1 | awk -F ' ' '{print $3}'`
cp -vf $LIBS  ./libs

for i in $LIBS
do
        tmp=`ldd $i | awk -F ' ' '{print $3}'`
        echo $tmp
        if [ -z $tmp ] ; then
                echo "null"
        else
                cp -vf $tmp ./libs
        fi    
done