什么命令解压缩tar文件()。
A. tar-czvf filename.tgz
B. tar-xzvf filename.tgz
C. tar-tzvf filename.tgz
D. tar-dzvf filename.tgz
如何在Debian系统中安装rpm包()。
A. alien pkgname.rpm
B. dpkg --rpm pkgname.rpm
C. dpkg --alien pkgname.rpm
D. alien pkganme.rpm ;dpkg -i pkganme.deb
ldconfig的配置文件是()
A. /lib/ld.so
B. /etc/ld.so.conf
C. /etc/ld.so.cache
D. /etc/modules.conf
命令kill9的含义是()。
A. kills the process whose PID is 9
B. kills all processes belonging to UID 9
C. sends SIGKILL to the process whose PID is 9
D. sends SIGTERM to the process whose PID IS 9