执行"[student@localhost~] $ nu=aaa "命令后,希望nu的值是aaabbb,则应执行的命令是()
A.正确答案Cnu=$nubbb
B.nu={$nu}bbb
C.nu=${nu}bbb
D.echo $(nu)bbb
执行"[student@localhost~] $ nu=aaa "命令后,希望nu的值是aaabbb,则应执行的命令是()
A.正确答案Cnu=$nubbb
B.nu={$nu}bbb
C.nu=${nu}bbb
D.echo $(nu)bbb