Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-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 -DRECYCLES_PIDS -DDEFAULT_PATH_VA\
LUE='/usr/local/bin:/usr/bin' -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
-fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic
uname output: Linux lab07.no.oracle.com 3.11.10-200.fc19.x86_64 #1 SMP Mon Dec
2 20:28:03 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Machine Type: x86_64-redhat-linux-gnu
Bash Version: 4.2
Patch Level: 45
Release Status: release
Description:
This script never terminates:
--------------------------------------------------
#!/bin/bash
for P in `seq 5`; do
sleep 1&
done
while true; do
usleep 20000
set foo `jobs -p`
LEFT=$#
LEFT=$[LEFT-1]
echo $LEFT jobs left
if [ x$LEFT = x0 ]; then
break
fi
done
-------------------------------------------------
Repeat-By:
Assume the above scripts is named bug.sh, simply execute:
./bug.sh
Fix:
Pasting the same commands in an interactive shell, its works.
