Linux @lemmy.ml Localhorst86 @feddit.org 2mo ago

Collecting linux shell scripts/commands

We all know this. We need to do a specific task and with the help of the internet we find a specific tool alongside command line parameters to do the job right from the shell.

What is a good way of collecting/documenting these snippets on your own for future reference and use? Just a text file in the home folder?

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I do mine in Obsidian, I just have a folder for 'computer notes' and whenever I figure out a new thing I drop it in there.

Some stuff I use often I set up as an alias too. So for example I have alias yt='yt-dlp -f "bestvideo[ext=mp4]+bestaudio[ext=m4a]/mp4"' for my most commonly used yt-dlp settings, so now I can just do yt [URL of video] to quickly download something from YouTube. Or alias rs="sudo rsync --ignore-existing -rav" for my rsync settings for a specific backup folder I copy a lot.
- In my obsidian i use the daily note feature heavily and if i come across a useful snippet or info i will add a tag and content like below. I found tagging to be helpful because i do not have to spend effort up front putting the file in the "right" folder. I have cleaned some of these up by removing them from my daily notes and into dedicated notes, but only after i have collected quite a few for a specific language or tech and there is a need for me to put more structure around the information.
  
  #codesnippet/<language or tech stack> Write a description to help me remember what this is for
  
  <insert code here>
- I prefer my -f "bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best" --concurrent-fragments 12 --throttled-rate 100K -o "%(uploader)s/%(playlist_title|)s/%(playlist_index&{} - |)s%(title)s.%(ext)s"
  
  Since it saves it based on the channel and if is a playlist, it makes a folder based in that
  
  Channel
  
  Playlist (if is a playlist, otherwise save inside channel)
  
  <playlist index> - title.extension (if not a playlist, it doesn't add the -
  
  Not sure if --concurrent-fragments 12 --throttled-rate 100K does actually something.
  
  I'm interested in the rsync part for backups, do you have a good guide or video for that? Thanks
  
  I’m interested in the rsync part for backups, do you have a good guide or video for that? Thanks
  
  I don't really have a guide or anything for it to hand, but essentially what that alias is doing is:
  
  rsync = running rsync
  
  --ignore-existing = as you might have guessed, this tells rsync not to copy a file if it already exists at the destination.
  
  -rav = additional arguments. r = recursive, IE also copy subfolders. a = archive mode, preserves things like symlinks etc. and v = verbose, just tells you extra info about what's going on.
  
  So with that alias, I can just type rs [target folder] [destination folder] and it'll copy it across exactly as it is, ignore anything that's already there and tell me precisely what it's doing.
  
  What if I added my own local server in dolphin? Can I use it's path to sync a local (Linux) folder to the server?
  
  Hmm, I have no idea to be honest! I just back up to an external drive. It does look like you can rsync to anything you have SSH access to, but I've never tried it personally.

25 comments