chroot下二进制程序迁移

#!/bin/bash

#

#define function
#Copy binary program
cp_bin(){
　　cmd_dir=${cmd_path%/*}
　　[ ! -d /mnt/sysroot$cmd_dir ] && mkdir -p /mnt/sysroot$cmd_dir &> /dev/null
　　if [ ! -e /mnt/sysroot$cmd_path ];then
　　　　cp $cmd_path /mnt/sysroot$cmd_dir
　　else
　　　　echo "Command already exists."
　　return 1
　　fi
}
#Copy shared libraries
cp_lib(){
　　while read lib_line;do
　　lib_dir=${lib_line%/*}
　　[ ! -d /mnt/sysroot$lib_dir ] && mkdir -p /mnt/sysroot$lib_dir &> /dev/null
　　if [ ! -e /mnt/sysroot$lib_line ];then
　　　　cp $lib_line /mnt/sysroot$lib_dir
　　fi
done < /tmp/cmd_lib

}

#main
read -p "Please enter a name for the executable command:" cmd
cmd=${cmd:=bash}
until [ $cmd == "quit" ];do
　　if which $cmd &> /dev/null ;then
　　　　cmd_path=`which $cmd | grep -o "/[^[:space:]]\+$"`
　　　　cp_bin
　　elif help $cmd &> /dev/null;then
　　　　echo "This is the bash built-in command."
　　　　read -p "Please enter a name for the executable command:" cmd
　　　　continue
　　else
　　　　read -p "Command does not exits,please re_enter,or exit(quit):" cmd
　　　　continue
　　fi
　　if [ $? -eq 0 ];then
　　　　ldd $cmd_path | grep -o "/[^[:space:]]\+" > /tmp/cmd_lib
　　　　cp_lib
　　fi
　　read -p "To complete the copy command,continue with the next command,or exit(quit):" cmd
　　cmd=${cmd:=bash}
done