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#

# Use the 'ldd' command to verify 'shared libraries' exist.

#

#

# Is an input file name used?

#

arg1="unixinst"

if [ -z "$1" ]; then

echo

echo "Checking '$arg1' by default!"

else

arg1="$1"

echo

echo "Checking '$arg1' binary file!"

fi

rm checklib.out 2> /dev/null

#

# Verify that the file to be checked exists and is an ELF

# binary executable which can be checked with 'ldd'.

#

if [ ! -f $arg1 ]; then

echo

echo "The '$arg1' binary exist does not exist!!"

echo "Exiting script!"

echo

exit 1;

elif [ -x "$arg1" ] && file "$arg1" | grep -q 'ELF'; then

echo

echo "The '$arg1' file is an ELF binary executable ok for 'ldd' check!!"

else

if [ -x "$arg1" ]; then

echo

echo "The '$arg1' file does have execution permissions!!"

else

echo

echo "The '$arg1' file does NOT have execution permissions!!"

fi

if file "$arg1" | grep -q 'ELF'; then

echo

echo "The '$arg1' file is an ELF binary!"

else

echo

echo "The '$arg1' file is NOT an ELF binary!"

fi

echo

ldd $arg1

echo

echo "Exiting script!"

echo

exit 1;

fi

#

# Check the binary file.

#

echo

ldd $arg1 > checklib.out

#

# Verify the 'ldd' results.

#

if [ ! -f checklib.out ]; then

status=2

else

cat checklib.out | grep "not found"

status=$?

fi

#

# $status Values

#

# 0 --> Missing 'shared libraries'.

# 1 --> All 'share libraries' are ok!

# 2 --> Error processing the 'checklib.out' file.

#

if [ $status = 2 ]

then

echo

echo "Unable to verify that the required 'shared libraries' are"

echo "installed/available on this OS system which allows the binary files"

echo "to execute."

echo

ldd $arg1

echo

echo "Exiting with an error!"

echo

exit 2;

elif [ $status = 0 ]

then

echo

echo "The 'shared libraries' required to execute the '$arg1' binary"

echo "file is NOT installed/available on this OS system!"

echo

ldd $arg1

echo

echo "Exiting with an error!"

echo

exit 3;

else

echo

echo "The 'shared libraries' required to execute the '$arg1' binary"

echo "file is installed/available on this OS system!"

echo

ldd $arg1

echo

echo "Exiting OK!"

echo

exit 0;

fi