possible bash bug...

[George . R . Goffe]

Hi there,

I may be barking up the wrong tree here but I think I've found a bash bug.
Let me explain.

I have a script that has functions in it. From the main line I issue a
function call to func1 and pass a parameter. Func1 issues a function call
to func2 which returns a number, or rather should return a number. What I
get is the parameter string passed to func1. The origional function call
returns nothing.

Is this a case of me not knowing enough about scripting or is this a bug? I
have enclosed the script below. In an attempt to illustrate the structure
of the script I have placed echo statements at the beginning of each
function which PRODUCES even stranger (to me anyway) results.

Regards and thanks for your time,

George...


./tst
#!/usr/lsd/SunOS.5.8/bin/bash -xv

func1()
{
 echo ''
 echo 'func1 entered..............................'
 func1_v=$1                         # save the incomming parameter...
 func1_r=`func2 $func1_v`           # set the func1 return variable to
whatever func2 returns...
 return $func1_r
}

func2()
{
 echo ''
 echo 'func2 entered..............................'
 func2_v=$1                         # save the incomming parameter...
 return 2                           # return a 2...
}

# pass func1 a 0 and set wtf to whatever func1 returns...

 wtf=`func1 0`
func1 0
++ func1 0
++ echo ''
++ echo 'func1 entered..............................'
++ func1_v=0
func2 $func1_v
+++ func2 0
+++ echo ''
+++ echo 'func2 entered..............................'
+++ func2_v=0
+++ return 2
++ func1_r=
func2 entered..............................
++ return func2 entered..............................
./tst: return: bad non-numeric arg `func2'