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I want to write several lines (5 or more) to a file I'm going to create in script. I can do this by echo >> filename. But I would like to know what the best way to do this?
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Method # 1 – Using echo & Printf The simplest way to append multiple lines to a file is to use the echo and printf command. Let us start with echo. Echo is a command used to output a string or multiple strings as arguments.
In Shell or Bash shell, we can comment on multiple lines using << and name of comment. we start a comment block with << and name anything to the block and wherever we want to stop the comment, we will simply type the name of the comment.
Append Text Using >> Operator The >> operator redirects output to a file, if the file doesn't exist, it is created but if it exists, the output will be appended at the end of the file. For example, you can use the echo command to append the text to the end of the file as shown.
Using '>>' with 'echo' command appends a line to a file. Another way is to use 'echo,' pipe(|), and 'tee' commands to add content to a file.
You can use a here document:
cat <<EOF >> outputfile some lines of text EOF If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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