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Shell Programming and Scripting

how to access a variable value

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# 1  
Old 05-19-2008
Java how to access a variable value
hi
i have a function
abc()
{
a=1
b=2
c=3
}
Now i want to assign these values to the variables out side the function
k=a
l=b
m=c

please help
# 2  
Old 05-19-2008
Variables have global scope, unless explicitly declared local inside a function.

You need to interpolate the values that you assign, though.

Code:
k=$a
l=$b
m=$c

# 3  
Old 05-19-2008
abc()
{
a=1
b=2
c=3
echo "k=$a \n l=$b \n m=$c"
}


eval $(abc)

echo "outside fn $k"
echo "outside fn $l"
echo "outside fn $m"
# 4  
Old 05-19-2008
Quote:
Originally Posted by aju_kup
abc()
{
a=1
b=2
c=3
echo "k=$a \n l=$b \n m=$c"
}


eval $(abc)

echo "outside fn $k"
echo "outside fn $l"
echo "outside fn $m"
Included in a script and run, I get the following output
outside fn
outside fn
outside fn
# 5  
Old 05-19-2008
Works here (although I would perhaps have done it differently); which shell are you using?

Code:
bash$ cat jredx
#!/bin/sh
abc()
{
a=1
b=2
c=3
echo "k=$a \n l=$b \n m=$c"
}


eval $(abc)

echo "outside fn $k"
echo "outside fn $l"
echo "outside fn $m"

vnix$ ./jredx
outside fn 1
outside fn 2
outside fn 3

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