echo $PWD
echo $pwd
echo $CWD
echo $cwd
第1题:
在UNIX系统中,Shell程序______实现显示用户主目录以及当前命令的进程标识符。
A.echo UserHome directorY:$LOGNAME
echo Carrent shell'Ss PID:$$
B.echo UserHome directory:$HOME
echo Carrent shell'PID:$@
C.echo UserHome directory:$LOGNAME
echo Carrent shell's PID:$@
D.echo UserHome directory:$HOME
echo Carrent shell's PID:$$
A.
B.
C.
D.
第2题:
A. export PATH=pwd
B. export PATH=$PWD
C. export PATH=$PATH:pwd
D. export PATH=$PATH:$PWD
第3题:
在linux系统中,在执行()命令后,用户tang不能执行at命令。
第4题:
linux系统中,以下显示结果不同的是()。
第5题:
回声探测仪()
第6题:
Linux下哪个命令显示所有的环境变量()。
第7题:
What command will allow the operator to add the current working directory to the command search path?()
第8题:
下面对于echo,print的描述正确的是()。
第9题:
What is the correct command to display the current working directory?()
第10题:
ping
tracert
netstat
show cdp neighbors detail
show ip route
traceroute
第11题:
ICMP echo requests are sent to 172.19.102.2 in five-millisecond intervals.
ICMP echo requests are sent to 172.19.102.2 until five packets are dropped.
ICMP echo requests are sent to 172.19.102.2 five times.
ICMP echo requests are sent continuously to 172.19.102.2 for five seconds.
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:
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14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15题:
linux系统中,以下显示结果相同的是()。
第16题:
在Premiere Pro中,对片断施加Echo特效,那么:()
第17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18题:
The command echo $! will produce what output?()
第19题:
What happens when you issue the ping 172.19.102.2 count 5 command?()
第20题:
Adobepremiereprocs3中,声音特效主要有()
第21题:
echo $PWD
echo $pwd
echo $CWD
echo $cwd
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:
ICMP
ARP
SNMP
IP
第24题:
向目标主机发送UDP Echo Request数据包,等待对方回应UDP Echo Reply数据包
向目标主机发送ICMP Echo Request数据包,等待对方回应ICMP Echo Reply数据包
向目标主机发送UDP Echo Reply数据包,等待对方回应ICMP Echo Request数据包
向目标主机发送ICMP Echo Reply数据包,等待对方回应ICMP Echo Request数据包