This smells buggy, but probably, someone can explain it:
The following script doesn't work, the output is below:
#!/bin/bash
GLOBAL_VAR="OLD"
myfunc() {
echo "func before set> $GLOBAL_VAR"
GLOBAL_VAR="NEW"
echo "func after set> $GLOBAL_VAR"
}
myfunc | cat
echo "final value> $GLOBAL_VAR"
Output:
func before set> OLD
func after set> NEW
final value> OLD
Now, just take off the | cat and it works!
#!/bin/bash
GLOBAL_VAR="OLD"
myfunc() {
echo "func before set> $GLOBAL_VAR"
GLOBAL_VAR="NEW"
echo "func after set> $GLOBAL_VAR"
}
myfunc
echo "final value> $GLOBAL_VAR"
Output:
func before set> OLD
func after set> NEW
final value> NEW
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