ubuntu 常用命令

1、查看dd 进度

   执行dd命令，

   dd if=/dev/zero of=/data3/test bs=1k count=1024000 &

   然后执行以下命令，即可查看

    while killall -USR1 dd; do sleep 5; done

   输出类似：

  

61+19064 records in
61+19064 records out
628686848 bytes (629 MB) copied, 128.192 s, 4.9 MB/s
62+19803 records in
62+19803 records out
652967936 bytes (653 MB) copied, 158.696 s, 4.1 MB/s
67+19976 records in
67+19976 records out
658964480 bytes (659 MB) copied, 186.418 s, 3.5 MB/s

 

2、查看gz文件的原始大小

 

命令：gunzip -l mx53loco-ubuntu-desktop.img.gz 
输出         compressed        uncompressed  ratio uncompressed_name
              579930387          3221225472  82.0% mx53loco-desktop.img