Shell Programming and Scripting

for ((i=0; i<120; i++))
do
    printf '\r%3d' $i
    sleep .5
done
echo

START=$( date +%s ); while true; do CURRENT=$( date +%s ) ; echo $(( CURRENT-START )) ; sleep 1 ; echo -n  ; done

ls -lrt *.txt |awk '{print $9}' > $HOME/file.list                                                                          
for file in `cat $HOME/file.list`                                  
   do                                                                  
     echo " Processing $file" >>$HOME/file_process.log
     $EXEC/xxx.exe $file      >>$HOME/file_process.log                             

   done

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cd $src_dir_path
TXT1=`cat Parameter.txt | grep "Counter=" | head -1` ;
FTXT1=`cat Parameter.txt .txt | grep "Counter=" | awk -F"=" '{print $1}' | head -1` ;
FTXT2=`cat Parameter.txt .txt | grep "Counter=" | awk -F"=" '{print $2}' | head -1` ;
NTXT=`expr ${FTXT2} + 1` ;
sed "s/$TXT/$FTXT"="$DT/g" Parameter.txt > Parameter_temp.txt ;
cp Parameter_temp.txt Parameter.txt
sed "s/$TXT1/$FTXT1"="$NTXT/g" Parameter.txt > Parameter.txt_temp.txt;
cp Parameter_temp.txt Parameter.txt .txt
chmod 777 Parameter.txt.txt
chmod 777 Parameter_temp.txt

Counter=0

cnt=0                        
# if you need only  files which names are *.txt, then no need ls+awk                                    
for file in *.txt                           
do                    
     cnt=$((cnt+1))
    # -n = no newline and -e needed if your echo not accept \r
    # \r carriage return - cursor to the position 1
     echo -n -e  "\r$cnt $file                                     "                                              
     $EXEC/xxx.exe $file      >>$HOME/file_process.log                             
done
echo 
echo "The End"