54 lines
1.4 KiB
Bash
54 lines
1.4 KiB
Bash
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#!/bin/sh
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# Only tested for controls of BOOLEAN, INTEGER, ENUMERATED, not sure whether
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# it works well or not for other types
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help_msg="
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This script is will transform the current amixer contents to SectionDefaults in
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UCM configurations.
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USAGE:
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save_defaults_from_amixer.sh <saved_file>
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NOTE:
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This script use sh to parse but not bash, and sh on Ubuntu is linked to dash
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by default, which may cause unexpected results. Therefore, you'd better test
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this script on your target machine first to ensure that it works well.
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"
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if [ "x$1" == "x-h" ]; then
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echo "$help_msg"
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exit 0
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fi
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results=
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contents=$(amixer contents)
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controls=$(amixer controls)
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old_IFS=$IFS
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IFS=$'\n'
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for line in $controls; do
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control_msg=$(echo "$contents" | grep -A 2 "$line")
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temp=${control_msg##*; type=}
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type=${temp%%,*}
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case $type in
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ENUMERATED)
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msg=$(echo "$control_msg" | grep ",items=")
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items=${msg##*,items=}
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trailing_lines=$(expr $items + 2)
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control_msg=$(echo "$contents" | grep -A $trailing_lines "$line")
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value_num=${control_msg##*: values=}
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value_item=$(echo "$control_msg" | grep "; Item #$value_num")
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value=${value_item##*; Item #? }
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;;
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*)
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value=${control_msg##*: values=}
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;;
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esac
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results="$results\ncset \"$line $value\""
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done
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IFS=$old_IFS
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echo -e "$results"
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