Shell Programming and Scripting

MyString=abcde

echo $MyString

MyString=abcde
echo $MyString | awk -v ORS="" '{ gsub(/./,"&\n") ; print }' | \
while read char
do
   echo "<$char>"
done

<a>
<b>
<c>
<d>
<e>

MyString=abcde
i=0
while (( i++ < ${#MyString} ))
do
   char=$(expr substr "$MyString" $i 1)
   echo "<$char>"
done

awk: syntax error near line 1
awk: bailing out near line 1

jps.ksh[3]:  i++ < 5 : syntax error

MyString=abcde
i=1
while (( i <= ${#MyString} ))
do
   char=$(expr substr "$MyString" $i 1)
   echo "<$char>"
   (( i += 1 ))
done