Shell Programming and Scripting

# zcat xyz1-3.tar.z|tar -xvf -

#!/bin/ksh
# Descend Current Directory unless target directory provided on command line
# Find all files with "tar.z" and uncompress and then tar extract them into current
# directory (or 2nd argument on command line)
PATH=/usr/local/bin:/usr/bin:/bin
SDIR="${1:-.}"
TDIR="${2:-.}"
find $SDIR -type f -name "*.tar.z" -print |
while read file; do
   echo -n "Processing $file..."
   if zcat $file | tar xfC - $TDIR ; then
     echo "done"
   else
     echo "ERROR"
   fi 2>extract.$$.log
done

if test -s extract.$$.log; then
 echo "Errors:"
 cat extract.$$.log
else
 rm  -f extract.$$.log
fi