单项选择题
A. /etc/rc/rc.mail B. /etc/mail.config C. /etc/sendmail.config D. /etc/mail/sendmail.cf
An operator is asked to verify the exact location of th...
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/java lrwxrwxrwx 1 root other 23 Jan 27 2006 /usr/bin/java -> ../jre1.5.0_06/bin/java Based 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
What command would an operator use to move a file from ...
单项选择题What command would an operator use to move a file from the /old_dir directory to the /new_dir directory without changing the file name?（）
A. mv /old_dir/file /new_dir B. mv -p /old_dir/file /new_dir C. mv -k /old_dir/file /new_dir D. mv /old_dir/file /new_dir/new_file
Which of the following commands will show the users tha...
单项选择题Which of the following commands will show the users that are logged on a system ?（）
A. id B. who C. whois D. lsuser
