Shell Programming and Scripting

PS3="Select file to view : "
select FILE in `ls`  QUIT
do
   if [ -e $FILE ] ; then
     clear
     cat  $FILE
  else
  break
  fi
  REPLY=''
done

PS3="Select file to view : "
select FILE in `ls`  QUIT
do
   if [ -z "$FILE" ]
   then
    echo INVALID INPUT
   else
    if [ -e "$FILE" ]
    then
     clear
     cat  "$FILE"
    else
     break
    fi
   fi
done

PS3="Enter corresponding number and hit enter:"
select DIR in `cat mylist`  QUIT
do
if [ -z "$DIR" ]
   then
   echo "INVALID INPUT"
else
if [ -d "$mysource/$DIR" ]; then
echo "Copying $mysource/$DIR ................................"
             cp -rp $mysource/$DIR $mydest/
 
                  mv -f mylist mylist1
                  perl -ne "print unless /\b$DIR\b/" mylist1 > mylist
               
else
     break
  fi
  fi
  REPLY=''
done

select DIR in `cat mylist`  QUIT
do
.
.
.
done