===将c++更改过的名字变回定义的名字===
[root@lhx-node2 ~]# c++filt _Z3foob
foo(bool)
===读取二进制的文件====
[lhx@lhx-master protobuf]$ od -A x -t x1z -v test
000000 0a 1e 0a 03 79 6c 6c 10 c0 c4 07 1a 0a 31 30 31 >....yll......101<
000010 36 36 33 37 34 36 37 22 07 0a 03 31 31 30 10 01 >6637467"...110..<
000020
###获取CentOS-7-x86_64-LiveGNOME-1804.iso所在的分区(grub能够识别的)
[root@localhost iso]# grub2-probe --target=drive CentOS-7-x86_64-LiveGNOME-1804.iso
(lvmid/cioN9O-T7CK-sA2p-efJL-1lsF-xfi4-OABdWp/K7Uj70-n41e-Dzsr-Jawx-8wMD-YzLd-EGE9OW)
##向磁盘sda中安装grub###
grub2-install /dev/sda