在Linux系统中的脚本文件一般以什么开头()。A.$/bin/shB.!/bin/shC.use/bin/shD.setshell=/bin/sh

An operator is asked to verify the exact location of the default JRE binary. The following commands were run:$ which java /usr/bin/java$ ls -l /usr/bin/javalrwxrwxrwx 1 root other 23 Jan 27 2006 /usr/bin/java -> ../jre1.5.0_06/bin/javaBased on the command outputs above, what is the path to the java executable file?（）

A. /usr/bin/java

B. /usr/jre1.5.0_06/bin/java

C. /usr/bin/jre1.5.0_06/bin/java

D. /usr/bin/java/jre1.5.0_06/bin/java

Linux的系统配置文件放置在（ ）目录中。

A./bin B./etc C./dev D./root

假设Red Hat Linux操作系统的/usr/bin/paste文件出了问题，用户想校验拥有该文件的软件包，但又不知道哪个软件包拥有此paste文件，此时，可使用(28)命令来诊断问题。

A．rpm -Va

B．rpm -qf/usr/bin/paste

C．rpm -qa

D．rpm -Vf/usr/bin/paste

A. #/bin/csh

B. #/bin/bash

C. /bin/bash

D. #!/bin/bash

A./bin/sh

B./bin/csh

C./bin/ksh

D./bin/rsh

A.chmod557/bin/foo

B.chmodo+rwx.a+rx/bin/foo

C.chown557/bin/foo

D.chmod755/bin/foo