将用户名“tom”改为“jerry”的命令写法正确的是( )
A: usermod
tom -l jerry
B: usermod
jerry -l tom
C: use rmod
-l tom jerry
D: usermod
-l jerry tom
A: usermod
tom -l jerry
B: usermod
jerry -l tom
C: use rmod
-l tom jerry
D: usermod
-l jerry tom
举一反三
- 关于锁定用户账号,下列选项正确的是________________。 A: usermod<br/>-l tom B: usermod<br/>-u tom C: passwd<br/>-l tom D: passwd<br/>-u tom
- 阅读下面的代码:publicclassExample{publicstaticvoidmain(String[]args){String[]strs={"Tom","Jerry","Donald"};//foreach循环遍历数组for(Stringstr:strs){str="Tuffy";}System.out.println(strs[0]+","+strs[1]+","+strs[2]);}}程序的运行结果是() A: Tom,Jerry B: Tom,Jerry,Tuffy C: Tom,Jerry,Donald D: 以上都不对
- t='Mike and Tom't.replace('Mike','Jerry')
- Tom and Jerry _______ good friends. A: are B: am C: is D: has
- 用“useradd<br/>jerry”命令添加一个用户,这个用户的主目录是什么( ) A: /home/jerry B: /bin/jerry C: /var/jerry D: /etc/jerry