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 }’…
Tag: heredoc
Create a heredoc that doesn’t interpret anything
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 dat…
shell script to read values from one file and replace it in other file
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 ex…
How to cat <> a file containing code?
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 …