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Variable Testing for size

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Operating Systems AIX Variable Testing for size
# 1  
Old 08-19-2004
Variable Testing for size

How do you test a variable size to know if it is empty or not?
# 2  
Old 08-19-2004
Ummm... do you think that the technique is the same for all languages?
# 3  
Old 08-19-2004
my mistake. It is in korn shell

# 4  
Old 08-19-2004
There are many ways. One is:

if [[ -z $var ]] ; then
echo var is empty
# 5  
Old 08-19-2004

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