Configuration Information [Automatically generated, do not change]:
Machine: i386
OS: linux-gnu
Compiler: i386-redhat-linux-gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i386'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i386-redhat-linux-gnu'
-DCONF_VENDOR='redhat' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash'
-DSHELL -DHAVE_CONFIG_H -I. -I. -I./include -I./lib -D_GNU_SOURCE
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -g -pipe
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -m32 -march=i386 -mtune=pentium4
-fasynchronous-unwind-tables
uname output: Linux chocolate.shorebell.local 2.6.14-1.1656_FC4 #1 Thu
Jan 5 22:13:22 EST 2006 i686 i686 i386 GNU/Linux
Machine Type: i386-redhat-linux-gnu
Bash Version: 3.0
Patch Level: 16
Release Status: release
Description:
Cannot set variable declared outside of nested while loop within
a function. This works in ksh. :(
See example below for a better explanation.
Repeat-By:
func1()
{
if [ -n "$a" ]
then
a="$1|$a"
else
a="$1"
fi
}
bad()
{
(echo abc;echo def;echo ghi) |
while read line
do
echo $line |
while read lh
do
func1 "$lh"
done
done
}
good()
{
(echo abc;echo def;echo ghi) |
while read line
do
func1 "$line"
done
}
a=""
bad ## this has a problem accessing a
echo $a ## this echoes nothing
a=""
good ## this sets a properly but is not accessible in next line
echo $a ## this echoes nothing
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