The command echo $! will produce what output？（）A、 the process id of last background commandB、 the exit status of the last commandC、 the exit status of the last background commandD、 the process id of the current shellE、 the name of the command being executed
The command echo $! will produce what output？（）
- A、 the process id of last background command
- B、 the exit status of the last command
- C、 the exit status of the last background command
- D、 the process id of the current shell
- E、 the name of the command being executed
相关考题：
（ 26 ） 窗体 中 3 个命令按钮 ， 分别命名 为 command1 、 command 2 和 command3, 当单 击 command 1 按钮时 ， command 2按钮变为可用， command3 按钮变为不可见，下列 command1 的单击事件过程中，正确的是A ） private sub command1_click()Command2.visible=trueCommand3.visible=falseEnd subB ） private sub command1_click()Command2.enabled=trueCommand3.enabled=falseEnd subC ） private sub command1_click()Command2.enable=trueCommand3.visible=falseEnd subD ） private sub command1_click()Command2.visible=trueCommand3.enable=falseEnd sub
（ 22 ）在窗体上，设置空间 Command0 为不可见属性是A Command0.ColoreB Command0.CaptionC Command0.EnabledD Command0.Visible
窗体上添加有3个命令按钮，分别命名为Command1、Command2和Command3。编写 Command1的单击事件过程，完成的功能为：当单击按钮Command1时，按钮Command2 可用，按钮Command3不可见d以下正确的是________。A．Private Sub Command1_Click() Command2.Visible=True Command3.Visible=False End SubB．Private Sub Command1_Click() Command2.Enabled=True Command3.Enabled=False End SubC．Private Sub Command1_Click() Command2.Enabled=True Command3.Visible=False End SubD．Private Sub Command1_Click() Command2.Visible=True Command3.Enabled=False End Sub
在窗体上，设置控件Command0为不可见的属性是( )。A．Command0.ColoreB．Command0.CaptionC．Command0.EnabledD．Command0.Visible
为了使命令按钮(名称为Command1)右移200，应使用的语句是______。A．Command1. Move-200B．Command1. Move 200C．Command1. Left=Command1. Left+200D．Command1. Left=Command1. Left-200
为了使命令按钮（名称为Command1）右移200，应使用的语句是（ ）。A．Command1.Move -200B．Command1.Move 200C．Command1.Left = Command1.Left + 200D．Command1.Left = Command1.Left - 200
执行( )语句，可使窗口的按钮Command1上显示“确定”。A、 Command1.Show = "确定"B、 Command1.Caption = "确定"C、 Command1.Name = "确定"D、 Command1.Visible = "确定"
窗体上有3个按钮Commandl、Command2和Command3，如以下代码： Private Sub Commandl Click() Command2．Enabled：Fal3e Command3．Vi3ible＝Fal3e End Sub 该程序的功能是 ( )A．当单击按钮Command1时, Command2和Command3按钮不可用B．当单击按钮Command1时, Command2和Command3按钮不可见C．当单击按钮Command1时, Cammand2按钮不可用和Command3按钮不可见D．当单击按钮Command1时, Command2按钮不可见和Command3按钮不可用
窗体上添加有3个命令按钮，分别命名为Command1、Command2和Command3。编写Commandl的单击事件过程，完成的功能为：当单击按钮Command1时，按钮Command2可用，按钮Command3不可见。以下正确的是( )。A．Private Sub Command1_C1ick() Command2.Visible=True Command3.Visible=False End SubB．Private Sub Commandl_C1ick() Command2.Enabled=True Command3.Enabled=False End SubC．Private Sub Conunand1_C1ick() Command2.Enabled=True Command3.Visible=False End SubD．Private Sub Command1_Click() Command2.Visible=True Command3.Enabled=False End Sub
Which statement about the WebView submit command is true?() A. The submit command exits the GUI.B. The submit command reboots the WX device.C. The submit command saves and writes the configuration to flash.D. The submit command is the same as the commit CLI command.
Arielisdesigninganapplicationandwouldliketocreateresponsedocumentswithacopyoftheoriginaldocinacollapsiblesection,oneofthefollowing@command,providedwiththecorrectparameters,willallowhertodothis() A.@command ([compose with copy])B.@command ([compose with section])C.@command ([compose with reference])D.@command ([compose with referencesection])
kristinwantstobuildanactionwhichexitsthevideoform.theactionwillbeavaiableonlywhentheuserisreadingthedocument,whichoneofthefollowingaccomplishthis?() A.@command([back])B.@command([fileexit])C.@command([gotoview])D.@command([fileclosewindow])
在窗体上画三个命令按钮，其名称分别为Command1、Command2和Command3，然后编写如下事件过程： Private Sub Command1 Click() Command2.Enabled = False Command3.Visible = False End Sub程序运行后，单击命令按钮Command1，则执行的操作是______。A．命令按钮Command2和Command3禁用B．命令按钮Command2和Command3隐藏C．命令按钮Command2隐藏，Command3禁用D．命令按钮Command2禁用，Command3隐藏
In the Cisco IOS, what is the definition of a global command?() A. A command that can be entered in any configuration mode.B. A command that supports all protocols.C. A command that is implemented in all IOS versions.D. A command that is set once and affects the entire router.E. A command that is available in every release of IOS.
对于command1command2||command3下面表述正确的是：（）。A、当command1成功，command2失败时才执行command3B、当command1、command2成功时才执行command3C、当command1、command2失败时才执行command3D、当command1失败，command2成功时才执行command3
What is a global command?（）A、A command that is available in every release of IOS, regardless of the version or deployment status.B、A command that can be entered in any configuration mode.C、A command that is universal in application and supports all protocols.D、A command that is implemented in all foreign and domestic IOS version.E、A command that is set once and affects the entire router.
程序运行时，使Command1失效的语句是（）。A、 Command1.Visible=TrueB、 Command1.Visible=FalseC、 Command1.Enabled=TrueD、 Command1.Enabled=False
In the Cisco IOS, what is the definition of a global command?（）A、A command that can be entered in any configuration mode.B、A command that supports all protocols.C、A command that is implemented in all IOS versions.D、A command that is set once and affects the entire router.E、A command that is available in every release of IOS.
What is a global command?（）A、a command that is set once and affects the entire routerB、a command that is implemented in all foreign and domestic IOS versionsC、a command that is universal in application and supports all protocolsD、a command that is available in every release of IOS, regardless of the version or deployment statusE、a command that can be entered in any configuration mode
Ariel is designing an application and would like to create response documents with a copy of the original doc in a collapsible section, one of the following @command, provided with the correct parameters, will allow her to do this （）A、 @command ([compose with copy]) B、 @command ([compose with section]) C、 @command ([compose with reference]) D、 @command ([compose with referencesection])
An operator has been asked if a system was rebooted. Which of the following commands should be used to determine if a reboot has occurred?（）A、The name?command.The ?name?command.B、The ptime?command.The ?ptime?command.C、The hutdown ast?command.The ?hutdown ?ast?command.D、The ?etc/rc.shutdown?command.
Which statement about the WebView submit command is true?（）A、The submit command exits the GUI.B、The submit command reboots the WX device.C、The submit command saves and writes the configuration to flash.D、The submit command is the same as the commit CLI command.
单选题Which statement about the WebView submit command is true?（）AThe submit command exits the GUI.BThe submit command reboots the WX device.CThe submit command saves and writes the configuration to flash.DThe submit command is the same as the commit CLI command.
单选题In the Cisco IOS, what is the definition of a global command?（）AA command that can be entered in any configuration mode.BA command that supports all protocols.CA command that is implemented in all IOS versions.DA command that is set once and affects the entire router.EA command that is available in every release of IOS.
单选题查找命令的快捷键是：（）AControl（Windows）/Command（MacOS）+CBControl（Windows）/Command（MacOS）+MCControl（Windows）/Command（MacOS）+FDControl（Windows）/Command（MacOS）+S
单选题Which two commands should be entered on a WLAN controller to remove any residual configuration？（）A Enter the clear controller command followed by the reload command.B Enter the clear controller command followed by the reset command.C Enter the clear controller command followed by the reset system command.D Enter the erase startup-config command followed by the reload command.E Enter the erase startup-config command followed by the reset command.F Enter the erase startup-config command followed by the reset system command.
单选题If you issue the command shutdown abort prior to trying to put the database in ARCHIVELOG mode， what will be the result when you issue the command alter database archivelog？（）A The alter database archivelog command will failB The alter database archivelog inconsistent command must be used to put the database in ARCHIVELOG modeC The alter database archivelog command will succeedD The alter database archivelog command will ask if you want to make the database consistent firstE There is no alter database archivelog command. The correct command is alter database alterlogging