Shell script wrapper

[vrajpal-jhala]

#!/usr/bin/env bash

# Download the remote dockcheck script into the current working directory
# overwriting any existing copy, make it executable, then execute it with
# any arguments passed to this wrapper.
# Remote URL: https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh

set -euo pipefail

REMOTE_URL="https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh"
TARGET_FILE="./dockcheck.latest.sh"

echo "Downloading remote script to '$TARGET_FILE' from: $REMOTE_URL"

# Download and overwrite
if ! curl -fsSL -o "$TARGET_FILE" "$REMOTE_URL"; then
	echo "Error: failed to download $REMOTE_URL" >&2
	exit 2
fi

chmod +x "$TARGET_FILE"

# Execute the downloaded script with all provided arguments
exec "$TARGET_FILE" -- "$@"

Run in Ubuntu: /bin/bash dockcheck.sh

[mag37]

Thank you for sharing!

May I ask why the wrapper?

[vrajpal-jhala]

Hi @mag37, this was just to use always the latest script in case there were any updates/fixes. I'm not sure if there are any better ways.

[mag37]

I appreciate it! Though it might be redundant.

The script itself has a built in check if it has a new version, and if so it will self-update either with git/curl/wget depending on the environment. And then restart with the same arguments that were given.

[vrajpal-jhala]

Oh I see. That's great!

Yeah, in that case it is redundant. You may close the discussion to keep things tidy. Thanks!