拷贝一批文本文件(10000)到目录
cp
- time: 0.470s
- 当文件更新了或者缺少时才拷贝。(-u)
- 速度最快
cp -u labels/*/*.txt datasets/yolo/sign/labels/
xargs
- time: 30.003s
ls labels/*/*.txt | xargs -I {} cp {} datasets/yolo/sign/labels/
find -exec
- time: 32.521s
find labels/ -type f -iname '*.txt' -exec cp {} datasets/yolo/sign/labels/ \;
for
- time: 41.259s
for i in `ls labels/*/*.txt`; do cp $i datasets/yolo/sign/labels/; done