If Statement question 2

[UCF87]

Is it possible in an if statement, to determine if a variable contains a two or three digit number? Then I will need to add 2 or 1 preceeding zero(s) to that number respectively.

 

[vgersh99]

#!/bin/ksh

a='12'

if [[ "${a}" = @([0-9][0-9]|[0-9][0-9][0-9]) ]] ; then
a=$(printf "%04d" "${a}&quot
echo "[$a] YES"
else
echo "[$a] NO"
fi;


vlad
+----------------------------+
| #include<disclaimer.h> |
+----------------------------+

 

[PHV]

If in ksh you can play with the typeset -Z4 and typeset -i commands, something like this(for testing variable a):

typeset -Z4 result=0
[ ${#a} -ge 2 -a ${#a} -le 4 ] &&
  typeset -i b="$a" 2>/dev/null &&
    result=$b || echo BAD

Hope This Help
PH.