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How do you repeat something in bash?
Basically, you get the “yes” command to repeat the string “ls” N times; while “head -n5” terminated the loop at 5 repeats. The final pipe sends the command to the shell of your choice. Incidentally csh -like shells have a built-in repeat command. You could use that to execute your command in a bash sub-shell!
What is the use of repeat command?
The REPEAT command enables you to loop through a block of code. REPEAT defines the beginning of the block, and ENDREPEAT defines the end. You control the loop by specifying the number of loop iterations, and/or the conditions under which the loop terminates.
How to write a bash script that answers interactive prompts?
A Sample Script That Requires Multiple Inputs Let’s consider a bash script that asks three simple questions to the user: #!/usr/bin/env bash echo “Hello, please introduce yourself.” echo -n “Your name: ” read -r name echo “Are you human?” echo -n “y/n: ” read -r human echo “What is your favorite programming language?”
How to enter a new line in Bash?
Alternatively, instead of typing Enter, you can type Ctrl-V Ctrl-J. That way, the newline character (aka ^J) is entered without the current buffer being accepted, and you can then go back to editing the first line later on. In zsh, you can press Alt-Enter or Esc Enter to insert a newline character without accepting the current buffer.
How to pass yes to all prompts in Bash?
Just want to add one more way. Found it elsewhere, and is quite simple. Say I want to pass yes for all the prompts at command line for a command “execute_command”, Then I would simply pipe yes to it. This will use yes as the answer to all yes/no prompts. You can also use printf to pipe the input to your script. Highly active question.
How to answer yes or no questions in Bash?
2. Using yes to Answer Yes/No Prompts yes is a simple command-line application that is built-in to many Linux distributions. We can use yes to output the same answer over and over in case there is a prompt, so our script won’t be interrupted waiting for input when a program asks a yes/no question.