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What is the command in shell terminal to find the total average of 3 grades?
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What does a terminal emulator allow you to do from GUI that you would not be able to do without one?
A terminal emulator emulates a terminal in a graphical environment. It provides a command line interface from which you can give shell commands, which you cannot do otherwise from a GUI (other than by using Run Command from the Main menu).
How do you print a line on screen shell script?
That would depend on what shell you're using. Most seem to have a command similar to "echo x" which will print x to the terminal.
What does unix command tput do?
The TPUT utility uses the terminfo database to make the values of terminal-dependent capabilities and information available to the shell
What are the common shell variables in unix?
The common shell variables differ according to which shell you are talking about. In general, they control the shell environment behavior, terminal behavior, and other external things. You can get a list per shell by using the 'man' command with the shell name to list out the common variables used in that shell environment.
What shell was developed as the first UNIX command processor?
The first command shell was 'sh', the Bourne shell (Steven Bourne).
What is the command a user invokes to log off Linux from the command shell?
Type exit to leave a terminal.
What is the difference between interactive use of shell command and running a shell?
In an interactive shell session the shell program waits for the user to type in a command. When receiving a command the shell program will then attempt to locate it and process (execute) the command. You are interacting with the shell. Running a shell file requires a pre-stored series of commands stored in a file. Unless the shell program you are running is interactive then the shell executes each command in sequence, without involving the user at all.
Command prompt on a Mac Machine?
Command Prompt is the command-line interpreter used within the Windows operating system. As Mac OS X is based on the Unix operating system it uses the a Unix Shell command-line interpreter. You can access the Shell by running the Terminal application which can be found in the Utilities folder which is within the Applications folder.
What does the shell ordinary do while a command is executing?
While the command is executing, the shell waits for the process to finish.
What is the output of the command 'echo shell shell'?
The output would be 'shell shell' (without the quotes, of course)
What is kernel and shell and what is the difference between these two?
A kernel is the heart of the operating system and acts as a middle ground between hardware and software. Some (if not all) device drivers are kernel-level drivers as kernelmodules. A shell is a command terminal that allows the user to interact with the user.
What command do you type in Linux to determine the shell you are using?
echo $SHELL
