How to read keyboard input in shell script?
read command syntax
- read -p “Request” variable1 variable2 variableN. Where, -p “Prompt”: Prompt the user without a new line.
- #!/bin/bash read -p “Enter your name:” name echo “Hello, $name. Let us be friends!” Save and close the file.
- chmod +x greeting.sh ./greeting.sh. Sample outputs:
Table of Contents
How do you request user input in Linux shell script?
The read command is used to get user input in a Linux shell script. The -p switch with the read command is used to display useful text on the screen. Create a shell script called input.sh and add the following content. #!/bin/bash read -p “Enter your name:” username echo “Welcome $username!”
How can I tell a file type in Linux?
How to determine the file type of a file. To determine the file type of a file, pass a file name to the file command. The file name along with the file type will be printed to standard output. To display only the file type, pass the -b option.
What are the different types of redirection in Linux?
Unix/Linux: shell input/output redirects
- Output redirection. The output of a command normally destined for standard output can easily be diverted to a file.
- Input redirection.
- Here Document.
- Discard the output.
- redirect commands.
How do I redirect the number of lines in Unix?
You can use the -l flag to count lines. Run the program normally and use a pipe to redirect to wc. Alternatively, you can redirect the output of your program to a file, say calc. out and run wc on that file.
How do I copy from the command line to the clipboard?
To copy the output of the command prompt to the clipboard, use one of the methods. Using the keyboard: Press Ctrl + A to select all the text and press ENTER to copy it to the clipboard. Using the Edit menu: Right-click on the command prompt’s title bar → Edit → Select All. Repeat the same thing and this time select Copy from the Edit menu.
How do I select and copy text in Linux terminal without mouse?
Run the command screen first, then you can do the following steps:
- Press Ctrl + a + Esc It will put the screen in copy mode.
- Now, move the cursor to the beginning of the section to copy and press enter.
- then move the cursor to the end of the section to copy and press enter.
- Now, press Ctrl + a + ]to paste.
How do I paste on Linux without a mouse?
Ctrl+Shift+C and Ctrl+Shift+V You can use Ctrl+Shift+V to paste the copied text in the same terminal window or in another terminal window. You can also paste into a graphical application like gedit. But note that when you are pasting into an application, and not a terminal window, you must use Ctrl+V.
How to copy and paste in terminal?
If you just want to copy a piece of text in the terminal, all you need to do is highlight it with your mouse and then press Ctrl + Shift + C to copy. To paste it where the cursor is, use the keyboard shortcut Ctrl + Shift + V.