Many factors must be taken into consideration: the children's personality and maturity, the amount of time the children will be alone, the safety of the neighborhood, ____(可以得到) of help in case of an emergency.
Redhat7.4中默认的SHELL是什么?
A. bash
B. ksh
C. tcsh
D. sh
现在将/tmp目录下的test.sh文件权限改为只有文件所属者有可读可执行的权限,其他人都没有任何权限,应该怎么做?
A. chmod 500 /tmp/test.sh
B. chmod 501 /tmp/test.sh
C. chmod 700 /tmp/test.sh
D. chmod 007 /tmp/test.sh