150 lines
3.4 KiB
Bash
Executable File
150 lines
3.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# 2025-11-10 Hyperling
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# Volume management for systems without working volume buttons.
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# Written for ease of use in terminal and simple window management systems.
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function volume-usage {
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cat <<- EOF
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Usage: volume [%int] [(+/-)%int] [-d] [-r] [-t] [-h]
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Set to a static value:
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volume 100, volume 65
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Increment or decrement. Passing only + or - and no number defaults to 5.
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volume -5, volume 5-, volume - 5, volume 5 -
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volume +20, volume 20+, volume + 20, volume 20 +
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Display the current volume:
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volume,
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volume-display, volume display, volume --display, volume -d,
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volume +d
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Set volume to a random number between 0 and 100.
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volume-random, volume random, volume --random, volume -r
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Be silly and oscillate volume in a loop:
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volume-trip, volume trip, volume --trip, volume -t
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Display this help text:
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volume-usage,
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volume-help volume help, volume --help, volume -h
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EOF
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return "$1"
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}
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alias volume-help="volume-usage"
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alias vol-h="volume-help"
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function volume {
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if [[ "$1" == "--help" || "$1" == "help" || "$1" == "-h" ]]; then
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volume-usage
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fi
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if [[ (-z "$1" && -z "$2")
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|| "$1" == "--display" || "$1" == "display" || "$1" == "-d" || "$1" == "+d"
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]]; then
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volume-display
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fi
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if [[ "$1" == *"%"* || "$2" == *"%"* ]]; then
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set -- "${1//%/}" "${2//%/}"
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fi
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dir=""
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typeset -i amt
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# Check if format is written text.
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if [[ "$1" == "full" || "$1" == "max" ]]; then
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amt=100
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fi
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if [[ "$1" == "mute" || "$1" == "none" ]]; then
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amt=0
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fi
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# Check if the format is "volume +/- %int"
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if [[ -z "$amt" && -z "$dir" ]]; then
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if [[ "$1" == "+" || "$1" == "-" ]]; then
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dir="$1"
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amt="$2"
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if [[ -z "$2" ]]; then
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amt="5"
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else
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amt="$2"
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fi
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fi
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fi
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# Check if the format is "volume +/- %int".
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if [[ -z "$amt" && -z "$dir" ]]; then
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if [[ "$2" == "+" || "$2" == "-" ]]; then
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amt="$1"
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dir="$2"
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fi
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fi
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# Check if amount and direction are adjacent, and if so, pull the values.
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if [[ -z "$amt" && -z "$dir" ]]; then
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if [[ "$1" == *"+"* ]]; then
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dir="+"
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elif [[ "$1" == *"-"* ]]; then
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dir="-"
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fi
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if [[ -n "$dir" && -z "$amt" ]]; then
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amt="$1"
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fi
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fi
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amt=${amt//-/}
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amt=${amt//+/}
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if [[ -n "$dir" && -n "$amt" ]]; then
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echo "> Changing volume by '$dir$amt%'."
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amixer -q sset Master ${amt}%${dir}
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echo "> Volume is now '`volume-display`'."
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return 0
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fi
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if [[ -z "$dir" && -n "$1" ]]; then
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echo "> Setting volume to '$amt'."
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amixer -q sset Master ${amt}%
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echo "> Volume has been set to '`volume-display`'."
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return 0
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fi
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echo "Error: Should not have made it here. Please report this to the developer."
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echo "$0 $1 $2"
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return 7
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}
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alias vol="volume "
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alias vol-="volume - "
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alias vol+="volume + "
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function volume-display {
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if [[ "$1" == "-v" || "$1" == "--verbose" || "$1" == "verbose" ]]; then
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amixer sget Master
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else
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amixer sget Master | egrep -o '[0-9]{1,3}%' | head -n 1
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fi
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}
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alias "vol-d"="volume-display"
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# Go up and down until cancelled.
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#function volume-trip {
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# curr eq amixer current readout
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# if curr lt 50 then dir eq + else dir eq -
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# while true; do
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# if vol is 0 then dir eq +
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# if vol is 100 then dir eq -
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# curr eq \$curr $dir 1
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# amixer set volume to curr
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# sleep 0.1
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# done
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#}
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#alias vol-t="volume-trip"
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#alias volume-wub="volume-trip"
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#alias vol-w="volume-wub"
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#function volume-random {
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# v eq $RANDOM % 101
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# amixer set volume eq v
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#}
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#alias vol-r="volume-random"
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