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Saved Commands/Scripts (lemmy.ml)
submitted 7 months ago by to c/linux@lemmy.ml
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Does anybody else have a library of saved commands/scripts? What's in it? How do you organize it? Is there anything you'd want to share that other people might find helpful?

I do. I keep it in VS Code and store complicated (for me) stuff that I can't remember or worry I might not.

  1. Playlist download with yt-dlp with all my best settings, adding playlist index as track number.

  2. Ffmpeg metadata cleaner for music. Searching title for a bunch of specific strings to remove, setting the band, album, etc. and saving these in a new folder.

  3. Desktop file contents for when I need to create one for an appimage

  4. The script I used to bind audio output switching to a hotkey

  5. How to use ADB for when android blocks sideloading the normal way and I inevitably forget what Android Debug Bridge is or how to use it.

Linux Mint btw. Also yes, I am a noob.

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[–] 1 point 7 months ago* (last edited 7 months ago)

Sorry, late to the party. I like to use variations of them for debugging:

red="$(tput setaf 1)"
#green="$(tput setaf 2)"
yellow="$(tput setaf 3)"
blue="$(tput setaf 4)"
reset="$(tput sgr0)"

messg() { printf '%-20s\t%s\n' "$1" "$2"; }
warn() { messg "${yellow}Warn${reset}:" "$1"; }
error() { messg "${red}Error:" "$1" >&2; [ -n "$2" ] && exit "$2"; } # complain to STDERR and exit if given code
debug() { [ -n "$debug" ] && messg "${blue}$1${reset}" "$2"; }

[ "$debug" = "verbose" ] && set -x
if [ -n "$debug" ]; then
	alias rm='rm -v'
	alias mv='mv -v'
	alias mkdir='mkdir -v'
	alias ln='ln -v'
fi

And those for config/state management:

get_state() { grep "$1" "$state_file" 2>/dev/null |cut -d':' -f2; }
set_state() { printf '%s:%s\n' "$1" "$2" >> "$state_file"; }

get_conf() { cut -d'#' -f1 "$config_file" |grep -- "$1" |cut -d"=" -f2- ; }
set_conf() {
        #: gracefully sets config options
        #: meaning: changes value if key exists, creates it if not
	key="$1" value="$2" config="$config_file"
	if grep -Eq "${key}=" "$config"
		then sed -Ei "s/$key=.*/$key=$value/g" "$config"
		else printf '%s=%s\n' "$key" "$value" >> "$config"
	fi
}

And a few more:

isexec() { [ -x "$(command -v "$1" 2>/dev/null)" ]; }
contains() { case "$1" in *${2}*) return 0;; *) return 1;; esac; }
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