Pass variable from awk to bash

Question

How can I pass variable from awk to bash? I want to pass a lot of variable, so I don't use:

x=$(awk '.....)

I thing it's not usefull.

Solution

Assuming you trust the incoming data that awk is processing.

You can have awk print out shell variable declarations, and source the output of awk like it's a shell file:

source <(
    awk '
        # ....
        print "var1=" value1
        print "var2=" value2
        # ....
    ' input
)
echo "shell var1 = $var1"
echo "shell var2 = $var2"

Comments

[diego9403]

It's very strange for me, but it's works. Do you know other way?

[rici]

...and assuming the values have no whitespace or metacharacters in them.

[glenn jackman]

@diego9403, another way would be to not use awk and do whatever you're doing with bash instead.