CODEWITHSUNDEEP
bashself-updating
Tristan
Tristan

Reputation: 2727

Bash script that updates self?

I'm writing a utility using Bash scripting and I'd like to include an update feature with it. The script currently follows Ruby's gem philosophy, eg one command with multiple subcommands:

gem help
gem version
gem update

Ideally you would run:

myscript update

But I don't know if this is possible.

What's the best method of going about this? I know that writing to the currently running script is a Bad Idea.

Upvotes: 0

Views: 630

Answers (1)

ThiefMaster
ThiefMaster

Reputation: 318578

Simply invoke wget to download the new version. After successful download, move it to the current script's location and chmod +x it.

Upvotes: 4

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