Code:
DD=${ddmm%/*}
MM=${ddmm#*/}
hh=${hhmmss%%:*}
mmss=${hhmmss#*:}
mm=${mmss%:*}
ss=${mmss##*:}
echo $DD-$MM $hh:$mm:$ss
So now you have it separated into parts. So now you just have to figure out if it's valid:

Code:
let invalid=0
case $MM in
02)
test $DD -le 29 || invalid=1 ;;
0[469]|11)
test $DD -le 30 || invalid=1 ;;
0[13578]|1[02])
test $DD -le 31 || invalid=1 ;;
*)
invalid=1 ;;
esac

I tested this procedure and it don't make the reqirured proccess ,duplicated the month and the day in one variable.

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I have red this:
#!/usr/bin/ksh

string="abc@hotmail.com;xyz@gmail.com;uvw@yahoo.com"

oIFS="$IFS"; IFS=';'
set -A str $string
IFS="$oIFS"

echo "strings count = ${#str[@]}"
echo "first : ${str[0]}";
echo "second: ${str[1]}";
echo "third : ${str[2]}";

And i need to split a date and time in the following patern: 21/04 14:19:30 to 21 ,04 ,14, 19 ,30, but i don't want to use
oIFS="$IFS"; IFS=';'
and
IFS="$oIFS"
How can i do it?

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I have red this:
#!/usr/bin/ksh

string="abc@hotmail.com;xyz@gmail.com;uvw@yahoo.com"

oIFS="$IFS"; IFS=';'
set -A str $string
IFS="$oIFS"

echo "strings count = ${#str[@]}"
echo "first : ${str[0]}";
echo "second: ${str[1]}";
echo "third : ${str[2]}";

And i need to split a date and time in the following patern: 21/04 14:19:30 to 21 ,04 ,14, 19 ,30, but i don't want to use
oIFS="$IFS"; IFS=';'
and
IFS="$oIFS"
How can i do it?

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