linxu下开发常用的shell脚本

1、快速把.c替换成.o

ll *.c|awk  '{print $9}'|sed -n 's/.c/.o/g  p'

或者

ll *.c |awk '{ gsub(/.c/, ".o"); print $9}'

2、杀死进程

if [ $# -ne 1 ] ; then
echo usage:
echo      Program  Param
exit
fi
processid=`ps -ef|grep -w  $1 |grep -v grep|awk  '{printf("%s ", $2)}'`
for id in $processid;
do
kill -9 $id
echo  processID $id is killed

done

3、执行程序
if [ $# -ne 1 ] ; then
echo usage:
echo      Program  Param
exit 1
fi
$1 &
echo "$1 start succeed!"