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Shell Programming and Scripting

basic data validation

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# 1  
Old 05-10-2012
basic data validation
hpux. older version. don't have alot of the newer features in some utilities.

How do I verify that a variable starts with the letter A. I would like to make it case insensitive.

Also, if I have a variable that has letters and numbers. I want to change all the lower case letters to upper case. I think in linux I can use [:upper:](though I am not totally sure about the syntax), but that won't work in the version of hpunix I am using.
# 2  
Old 05-10-2012
when you say variable you mean content of variable right ?
# 3  
Old 05-10-2012
Try:
Code:
case $var in
  [aA]*) echo Starts with A or A
esac

Code:
$ echo hello | tr [:lower:] [:upper:]
HELLO

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