83 lines
1.6 KiB
Plaintext
83 lines
1.6 KiB
Plaintext
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#!/bin/bash
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# Author: Bandie <bandie@chaospott.de>
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# Copyright: Bandie, 2019, GNU-GPLv3
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CONFIG="/etc/default/grub"
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TMPCFG="grub_tmp"
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CFGKEYS=(
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## 'COMMENT'
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## 'KEY'
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## 'EXAMPLE_VALUE'
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'Name and mail address of owner'
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'OWNER'
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'"John Doe <john@doe.tld>"'
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'Amounts of seconds for how long the owner information is displayed. It is skippable via ESC. Default: 5'
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'OWNER_TIMEOUT'
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'5'
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)
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function testPerms(){
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if ! [ -e "$CONFIG" ]; then
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echo "$0: ERROR: $CONFIG does not exist!"
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exit 1
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fi
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if ! [ -w "$CONFIG" ]; then
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echo "$0: ERROR: Permission denied for file $CONFIG"
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exit 1
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fi
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}
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function append(){
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testPerms
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for ((i=0; i<${#CFGKEYS[@]}; i+=3)); do
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cat "$CONFIG" | grep "${CFGKEYS[(($i+1))]}" >> /dev/null
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if [ $? -ne 0 ]; then
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echo "Adding ${CFGKEYS[(($i+1))]} to $CONFIG..."
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echo "" >> $CONFIG
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echo "# ${CFGKEYS[$i]}" >> $CONFIG
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echo "#${CFGKEYS[(($i+1))]}=${CFGKEYS[(($i+2))]}" >> $CONFIG
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fi
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done
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}
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function remove(){
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testPerms
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for ((i=0; i<${#CFGKEYS[@]}; i+=3)); do
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echo "Removing ${CFGKEYS[(($i+1))]} from $CONFIG..."
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sed "$!N;/${CFGKEYS[$i]}/!P;D" "$CONFIG" | sed "/.*${CFGKEYS[(($i+1))]}=.*/d" > "$TMPCFG"
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cp "$TMPCFG" "$CONFIG"
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done
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rm $TMPCFG
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}
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function h(){
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echo "$0: Usage:"
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echo "$0 -i [ CONFIGFILE ] - Install config keys to config file. Configfile optional."
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echo "$0 -r [ CONFIGFILE ] - Remove config keys from config file. Configfile optional."
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}
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if [ -n "$2" ]; then
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CONFIG="$2"
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fi
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case $1 in
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"-i")
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append
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;;
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"-r")
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remove
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;;
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*)
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h
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esac
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