dllcopy.sh.txt

A so file copy script running on the Linux. It is a personal used small script. If you want to use i

#!/bin/sh
###########################################################
# This is a script for copying the lib related to the ldd #
# It is my first shell script,so maybe it is poor in      #
# quality. Especially its design is confuse and hard to   #
# understood.                                             #
#   The program flow :	                                  #
#   1. The script first use pipe to store the lib link    #
# message that ldd command displays in the file named     #
# ldd.tmp.                                                #
#   2. cat it to var x.                                   #
#   3. use the case to switch,judge by the head of x      #
#   4. judge whether the file is a link or not            #
#   5. 4-->y,get the linked file go to 4,copy the first   #
#      file                                               #
#   6. 4-->n,copy the first file judge in 4               #
#   7. End                                                #
#                                                         #
#   If you have any problem or advice, you can mail to me #
# I will try my best to answer the question imediately!   #
#   Thank you for reading!                                #
#                                                         #
# Author: lookou                                          #
#         Email : [e-mail] [e-mail]      #
#         HIT IBM Tech Center Linux Workgroup             #
###########################################################
function  cplink()
{
	# Three posible forms
	# lrwxrwxrwx  1 root root 13 May  4  2005 /lib/libc.so.6 -> libc-2.3.3.so
	# -rwxr-xr-x  1 root root 1573232 Oct 28  2003 /lib/libc-2.3.2.so
	# lrwxrwxrwx  1 root root 14 May  4  2005 /lib/tls/librt.so.1 -> librt-2.3.3.so
	if ! [ -z $rrlink ];then				# $rrlink is a two or more layer link
		if [ -e $rrlink ]&&[ -n $rrlink ];then 
			ls -l /$rrlink > ll.txt		#get the link file
			read line < ll.txt
			linkdirname=${line#*/}
			linkdirname=${linkdirname%/*}	
			linkdirname=$linkdirname/
		 	rm ll.txt
		 elif [ -e /lib/$rrlink ]&&[ -n $rrlink ];then
			ls -l /lib/$rrlink > ll.txt		#get the link file
		 	read line < ll.txt
			rm ll.txt
		fi
	fi		
		filename=${line#*/}			#cut head the first form will be:lib/libc.so.6 -> libc-2.3.3.so
		filename=${filename%% *}	#cut tail the first form will be:lib/libc.so.6
		filename=/$filename         #get the full name of the file :/lib/libc.so.6
	if [ -L $filename ];then		#if the file is a link file
		linkfile=${line##*-> }	    #get the linked file :libc-2.3.3.so
		if [ -e /lib/$linkfile ]&&[ ! -e /tmp/lib/$linkfile ];then 
			cp -dpR /lib/$linkfile /tmp/lib/$linkfile
		fi
		if ! [ -e $linkfile ];then
			linkfile=$linkdirname$linkfile   #connect the linkdir: like /lib/ or /lib/tls/
		fi
		if [ -e $linkfile ];then					#if is a link file, get the relative name and copy it
			cp -dpR $linkfile /tmp$linkfile		
			if  [ -L $linkfile ];then		# if the linked file is not the final file, it is also a link
				rrlink=$linkfile			# Copy the link again
				cplink
			fi
		elif  [ -L /lib/$linkfile ]&&[ -e /lib/$linkfile ];then		# If the link dir is wrong add lib at head
			cp -dpR /lib/$linkfile /tmp/lib/$linkfile
			rrlink=/lib/$linkfile
			cplink
	
		fi
	fi
	if ! [ -e /tmp/$filename ];then			#Copy the link file not the linked!
		cp -dpR $filename /tmp/$filename
	fi
	# clear the variables	 
	linkfile=""
	rrlink=""
	filename=""
	line=""
}
# ldd form:
#  librt.so.1 => /lib/tls/librt.so.1 (0x00468000)
ldd $1 > ldd.tmp		# store the ldd message
if ! [ -e /tmp/lib/ ];then	
	mkdir /tmp/lib
fi
for x in $(cat ldd.tmp)		# get the message in x
do
	case $x in	# Create the relate directory
    /* )	dir=${x%/*};					
			dirth=".$dir";
			if ! [ -e "$dirth" ];then
				mkdir -p $dirth
			 	echo "mkdiring...."
			fi

			line=$x
			cplink
			cp -dpR $x /tmp/$x;;
		
    \(*) 	;;# The useless form :	(0x00468000)
    =* ) 	;;# The uselsee form :    =>
    *  )	ls -l /lib/$x > ll.txt		#get the link file
		 	read line < ll.txt
		 	rm ll.txt
		 	cplink
    esac
	rm ldd.tmp
done