Linux常用命令

查找某个目录下所有的文件内容：

find src/ -type f -name "*.cpp" | xargs grep "test"

测试磁盘速度

time dd if=/dev/zero of=./test.dbf bs=8k count=300000

grep

grep -r --exclude "*.pyc" "address" /home/
grep -r --include "*.xml" "address" .