批量杀进程和信号量

1.杀进程
ps -ef | grep processname | grep username | grep -v grep  | awk {'print $2'} | xargs kill -9
或

kill -9 `pgrep processname`

2.杀信号量
ipcs -s | awk {'print $2'} | xargs ipcrm -s
或
for i in `ipcs -s | awk {'print $2'}`;do ipcrm -s $i;done