Tag: heredoc

Bash quoted new-lines cause heredoc to consume first new-line

How to reproduce Copy following example into a terminal session; Press <Enter>, then <Arrow-Up> Notice the }’ <<‘EOF’first bit where the first new line is consumed. Copy following example into a terminal session; Press <Enter>, then <Arrow-Up> Notice the }’ <<‘EOF’ bit where the first new line is not consumed. Questions How do I get Bash to append to history

Create a heredoc that doesn’t interpret anything

bash heredoc linux

I’m writing a script for a friend who is not experienced with bash. The script generates a backup script, generates a crontab and runs crontab to create a cron job. I want to date these backups, so currently the script (what’s relevant) is: This, however, generates finalCutScript.bash with the date as is when the “installer” script is run. Is there

shell script to read values from one file and replace it in other file

bash heredoc json linux shell

I would like to replace a set of strings into a new file. Source file file1.json values has to be replaced by values from file1.config into file file2.json. I have following script that is failing to do so. file1.json file1.config run.sh Error: file2.json appears, but it has no values replaced. Answer Just explaining the comment of @user3159253. Your file1.config should

How to cat <> a file containing code?

heredoc linux sh unix

I want to print code into a file using cat <<EOF >>: but when I check the file output, I get this: I tried putting single quotes but the output also carries the single quotes with it. How can I avoid this issue? Answer You only need a minimal change; single-quote the here-document delimiter after <<. or equivalently backslash-escape it: