常用命令

常用命令：

 

awk '{if (/field/){print $0"\nnew_field=new_value\x01"} else {print $0}}' old_xml > new_xml

 

查看物理CPU个数：

more /proc/cpuinfo | grep "physical id" | uniq | wc -l

 

查看

cat /proc/cpuinfo |grep "processor"|wc -l