Shell Programming and Scripting

#!/bin/ksh
while read line
do
cd $line/radmin
num=0
/bin/ls *.txt |
while read file_nm ; do

(( check = $RANDOM % 2 ))

if [ $check -eq 0 ]; then
continue
fi

(( num = num + 1 ))

echo /bin/cp $PWD/$file_nm $PWD/newword${num}.word

if [ $num -ge 6 ]; then
break
fi
done ### while doing random renaming....


done < source.txt


newword.word file didnt be created.

Then they are not using a standard Unix shell. (Can you give any examples?)

The Unix shell is clearly defined by the Open Group at sh, shell, the standard command language interpreter.