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hpr2317 :: Bash snippet - extglob and scp

How does scp manage extended glob patterns?

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Hosted by Dave Morriss on Tuesday 2017-06-20 is flagged as Explicit and is released under a CC-BY-SA license.
Tags: Bash,shopt,filename expansion,scp,rsync.

Listen in ogg, spx, or mp3 format. | Comments (2)

Part of the series: Bash Scripting

This is an open series in which Hacker Public Radio Listeners can share their Bash scripting knowledge and experience with the community. General programming topics and Bash commands are explored along with some tutorials for the complete novice.

Bash snippet - extglob and scp

The Problem

Following on from my last show on filename expansion, concentrating on extended patterns and the extglob option, I was asked a question by Jon Kulp in the comment section.

Jon was using ls *(*.mp3|*.ogg) to find all OGG and MP3 files in a directory which also held other files. However, when he wanted to copy this subset of files elsewhere he had problems using this expression in an scp command.

Having done some investigations to help solve this I thought I'd put what I found into an HPR episode and share it, and this is the show.

Along the way clacke commented too and this led me to more investigations!

Long notes

As often happens, my idea of a brief episode turned into something much longer, so I converted the notes into long notes which you can find here. In them I have marked some sections which you might want to skip over -- unless you are as much of a geek as I am! I have not covered these sections in detail in the audio.

Show Transcript

Automatically generated using whisper

whisper --model tiny --language en hpr2317.wav

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Comment #1 posted on 2017-06-28T20:13:31Z by Jonathan Kulp


Well, sort of. Many thanks for this follow-up episode, Dave. I think I understand it better now but I might not. Just one of those things, you know?

Comment #2 posted on 2017-06-29T13:20:16Z by Dave Morriss

Clear as mud? :-)

Hi Jon,

I hope it helped, if only a little. I got quite carried away by the investigation, and perhaps shouldn't have brain-dumped it all into an episode! It was quite fun though.

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