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How can I stop Bash from overwriting a line?
When using echo, it will automatically end the output with a new line character which moves the cursor to the next line. You can use -n to prevent the new line and if you echo again after this, it will append it to the end of that line
How to run a script in a loop in Bash?
If you want to run a script in a loop and not blow up your scrollback, you can use the following pattern: Just replace the script command with your own. This solution avoids the empty line, but input is not echoed before the lines are complete. Hint: My version of bash did not accept ” [ $finishInput -eq 0 ]”.
When do you want to return to the previous line in Bash?
When you want to return to the previous line use \\e [1A, and to clear that line, use \\e [K: Found a great [guide on escape sequences] [1] and wanted to expand on some of the discussions here. When you write out to a terminal, you move an invisible cursor around, much like you do when you write in any text editor.
How to delete a line at the same time in Bash?
In your example you delete the text at the same line. When you want to return to the previous line use \\e [1A, and to clear that line, use \\e [K: Found a great [guide on escape sequences] [1] and wanted to expand on some of the discussions here.
How to overwrite one file to another in Bash?
To overwrite one file’s content to another file. use cat eg. echo “this is foo” > foobar.txt cat foobar.txt echo “this is bar” > bar.txt cat bar.txt Now to Append foobar we can use a cat command as below cat bar.txt >> foobar.txt cat foobar.txt
Is it possible to overwrite the last line in a terminal?
It reads to the desc var until a empty line is passed. After that, i want to read in other stuff. I would like to overwrite the last empty line with the “Maintainer:”. which stays on the line and overwrites it. This is not possible in my case. In your example you delete the text at the same line.
How to process the output of a command in the shell?
You have to use shell builtin read, but be careful with lines containing spaces and tabs. I suggest locally change value of $IFS: You can use awk to process things on a per-line basis.