how to access a variable value

satish@123 · #1 (**permalink**) 05-19-2008

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

era · #2 (**permalink**) 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

aju_kup · #3 (**permalink**) 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"

jredx · #4 (**permalink**) 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

era · #5 (**permalink**) 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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