linux系统中,以下显示结果相同的是()。
第1题:
在Unix系统中,Shell程序(57)实现显示用户主目录以及当前命令的进程标识符。
A.echo UserHome directory:$LOGNAME echo Current shell's PID:$$
B.echo UserHome directory:$HOME echo Current shell's PID:$@
C.echo UserHome directory:$LOGNAME echo Current shell's PID:$@
D.echo UserHome directory:$HOME echo Current shell's PlD:$$
第2题:
在UNIX系统中,Shell程序(19)实现显示用户主目录以及当前命令的进程标识符。
A.cho UserHome directory:$LOGNAME echo Carrent shell's PID:$$
B.echo UserHome directory:$HOME echo Carrent shell's PID:$@
C.echo UserHome directory:$ LOGNAME echo Carrent shell's PID:S@
D.echo UserHome directory:$HOME echo Carrent shell's PID:$$
第3题:
Which statement best describes echo?()
第4题:
在Premiere Pro中,对片断施加Echo特效,那么:()
第5题:
下列哪个命令可以查看命令或脚本执行后的返回状态?()
第6题:
The command echo $! will produce what output?()
第7题:
下面对于echo,print的描述正确的是()。
第8题:
使用下面的哪条命令,可以显示当前正在使用的shell的PATH变量()。
第9题:
防止系统对ping请求做出回应,正确的命令是:()。
第10题:
echo The current working path is $PWD.
echo 'The current working path is $PWD.'
echo The current working path is $PWD.
echo The current working path is `pwd`.
第11题:
a current setting your vessel on the wall
a current setting into the lock chamber
an eddy working along the lower guide wall
a current setting counterclockwise
第12题:
the process id of last background command
the exit status of the last command
the exit status of the last background command
the process id of the current shell
the name of the command being executed
第13题:
A. export PATH=pwd
B. export PATH=$PWD
C. export PATH=$PATH:pwd
D. export PATH=$PATH:$PWD
第14题:
在linux系统中,在执行()命令后,用户tang不能执行at命令。
第15题:
linux系统中,以下显示结果不同的是()。
第16题:
如何查看PATH变量的值?()
第17题:
Linux下哪个命令显示所有的环境变量()。
第18题:
What command will allow the operator to add the current working directory to the command search path?()
第19题:
在linux环境下通过下面哪个命令得到当前使用shell的类型()。
第20题:
Adobepremiereprocs3中,声音特效主要有()
第21题:
What is the correct command to display the current working directory?()
第22题:
echo The current working path is $PWD.
echo The current working path is $PWD. Echo hello
echo 'The current working path is $PWD.' Echo hello
echo The current working path is `pwd`.
echo The current working path is $PWD. Echo hello
第23题:
Echo is the discernable leak-through of your own Rx path into your own Tx path.
Echo is the discernable leak-through of the packets of your Rx path into your own Tx path.
Echo is the nonaudible leak-through of the packets of your Rx path into your own Tx path.
Echo is the audible leak-through of the packets from the transmit path into your own receive path.
Echo is the nonaudible leak-through of the packets of your Tx path into your own Rx path.