Shell Programming and Scripting

0001.dcm
0002.dcm
0003.dcm
............
..........
0600.dcm

k=5
kk=0

for f in *.dcm; do

  if ["$kk" -eq 0] && ["$(expr $(echo 0$f | tr -cd 0-9))" -le "$k" ]; then
        mv $f a
    else
      let "kk"=1
      let "k +=5"
    fi


  if ["$kk" -eq 1] && ["$(expr $(echo 0$f | tr -cd 0-9))" -le "$k" ]; then
        mv $f b
    else
      let "kk"=0
      let "k +=5"

    fi

done

#!/bin/bash
cd /path/to/dcm_files
for i in *.dcm
do
    num=${i%%.*}
    num=$(( $num % 10 ))
    if [ $num -lt 6 ]; then
        echo "test: moving $i to /path/to/a/${i}"   # comment out this line after testing
   #    mv $i  /path/to/a/${i}   #uncomment after you TEST this
    else
         echo "test: moving $i to /path/to/b/${i}"   # comment out this line after testing
   #    mv $i /path/to/b/${i}   # uncomment after you TEST this
     fi
done

test: moving 0001.dcm to /path/to/a/0001.dcm
test: moving 0002.dcm to /path/to/a/0002.dcm
test: moving 0003.dcm to /path/to/a/0003.dcm
test: moving 0004.dcm to /path/to/a/0004.dcm
test: moving 0005.dcm to /path/to/a/0005.dcm
test: moving 0011.dcm to /path/to/b/0011.dcm
test: moving 0012.dcm to /path/to/a/0012.dcm
test: moving 0013.dcm to /path/to/a/0013.dcm
test: moving 0014.dcm to /path/to/a/0014.dcm
test: moving 0015.dcm to /path/to/a/0015.dcm
test: moving 0021.dcm to /path/to/b/0021.dcm
test: moving 0022.dcm to /path/to/b/0022.dcm
test: moving 0023.dcm to /path/to/b/0023.dcm
test: moving 0024.dcm to /path/to/a/0024.dcm
test: moving 0025.dcm to /path/to/a/0025.dcm
test: moving 0031.dcm to /path/to/a/0031.dcm
test: moving 0032.dcm to /path/to/b/0032.dcm
test: moving 0033.dcm to /path/to/b/0033.dcm
test: moving 0034.dcm to /path/to/b/0034.dcm
test: moving 0035.dcm to /path/to/b/0035.dcm
test: moving 0041.dcm to /path/to/a/0041.dcm
test: moving 0042.dcm to /path/to/a/0042.dcm
test: moving 0043.dcm to /path/to/a/0043.dcm
test: moving 0044.dcm to /path/to/b/0044.dcm
test: moving 0045.dcm to /path/to/b/0045.dcm
test: moving 0046.dcm to /path/to/b/0046.dcm
test: moving 0047.dcm to /path/to/b/0047.dcm
test.sh: line 6: 0048: value too great for base (error token is "0048")

n=0
cur=a
ls | sort -t"." -n | while read file;do
if [ -f $file ];then
	n=$(($n+1))
	t=`echo $n % 5 | bc`
	mv $file $cur
	if [ $t -eq 0 ];then
		if [ $cur == 'a' ];then
			cur=b
		else
			cur=a
		fi
	fi
fi
done