Hi! I am having a problem on two Linux systems and then not on two others. Slightly differnt OS and bash in each case. I'm puzzled.
Basically, on the two troubled systems, my interactive shell will hang after I've disowned a process. On one other system, everything works as expected. I expect that a disowned process should not hang logout -- disowned means disowned. I've compared shopt and env vars and don't know what is going on. I've googled and didn't see an obvious solution or answer. It seems like it's hanging on stdout since redirecting to /dev/null fixes the problem. Below is a sample script; -- #!/bin/bash -e # Background daemon test echo "Running sleep for 30 seconds..." # This will allow logout and won't hang the interactive terminal to wait # for stdout... #(sleep 30 > /dev/null 2>&1) & # # However, this hangs on logout... (sleep 30) & LASTPID=$! echo "Done." echo "" echo "Last PID was $LASTPID" disown $LASTPID echo "" echo "disowned $LASTPID" echo "" echo "TEST: is it there?" echo "--" ps axuw|grep $LASTPID|grep -v grep ps laxw|grep $LASTPID|grep -v grep echo "--" echo "" exit 0 -- Here is the actual line where I am having trouble. I can't redirect tail's output in this case. It seems like tail is the offender. (tail -f < /dev/null | $NETCAT -l -p $LISTENPORT >> $LOGFILE 2>&1) & -- # Jesse Molina # Mail = [EMAIL PROTECTED] # Page = [EMAIL PROTECTED] # Cell = 1.602.323.7608 # Web = http://www.opendreams.net/jesse/
