multiple-subdirectory-sed-operation.md

aliases	category	classification	date	date_modified	draft	id	image	links	local_archive_links	pinned	print	series	tags	title	type
multiple-subdirectory-sed-operation	bash	public	2020-11-24 10:51:02 -0800	2020-11-24 10:51:02 -0800	false	20201124185102				false	false		loop iterate sed bash	Multiple Subdirectory sed Operation	tech-note

The below will loop through each subdirectory from wherever you run it, then perform a sed operation on files matching the file ending.

As can be seen in the example, I've used this to quickly update providers across lots of Terraform modules, without having to manually update them.

# Formatted:
for directory in *; do
    for file in $directory/*.tf; do
        sed --in-place=.bak --regexp-extended 's/aws    = "2.67.0"/aws    = "3.17.0"/g' $file
    done
done