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Old 10-09-2007
robotronic's Avatar
robotronic robotronic is offline Forum Advisor  
Can I play with madness?
  
 

Join Date: Apr 2002
Location: Italy
Posts: 370
On Solaris you can use:

Code:
echo "12345678" | /usr/xpg4/bin/grep -Eq "^[0-9]{8}$"
In any case, you must use a tool which supports extended regular expressions to use the above regex.