change vars to readonly

diff --git a/flactomp3v2 b/flactomp3v2
index 691c44c44eca859ac8a1a95aa47a8d2eb9951c83..26d278bb979e1a2eb16eb403c8984f35af600826 100755 (executable)
--- a/flactomp3v2
+++ b/flactomp3v2
@@ -12,22 +12,22 @@ if [ -f $HOME/.flactomp3v2.conf ]; then
        source $HOME/.flactomp3v2.conf
 fi
 
-INPUTFILE=$1
-INPUTFILEDIR=${INPUTFILE%/*}
-OUTPUTFILE="${INPUTFILE[@]/%flac/mp3}" # give output correct extension
+readonly INPUTFILE=$1
+readonly INPUTFILEDIR=${INPUTFILE%/*}
+readonly OUTPUTFILE="${INPUTFILE[@]/%flac/mp3}" # give output correct extension
 
 # get the tags from flac file
-ARTIST=$(metaflac "$INPUTFILE" --show-tag=ARTIST | sed s/.*=//g)
-TITLE=$(metaflac "$INPUTFILE" --show-tag=TITLE | sed s/.*=//g)
-ALBUM=$(metaflac "$INPUTFILE" --show-tag=ALBUM | sed s/.*=//g)
-GENRE=$(metaflac "$INPUTFILE" --show-tag=GENRE | sed s/.*=//g)
-TRACKNUMBER=$(metaflac "$INPUTFILE" --show-tag=TRACKNUMBER | sed s/.*=//g)
-DATE=$(metaflac "$INPUTFILE" --show-tag=DATE | sed s/.*=//g)
-RRL=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_REFERENCE_LOUDNESS | tr '=' ':')
-RTG=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_TRACK_GAIN | tr '=' ':')
-RTP=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_TRACK_PEAK | tr '=' ':')
-RAG=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_ALBUM_GAIN | tr '=' ':')
-RAP=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_ALBUM_PEAK | tr '=' ':')
+readonly ARTIST=$(metaflac "$INPUTFILE" --show-tag=ARTIST | sed s/.*=//g)
+readonly TITLE=$(metaflac "$INPUTFILE" --show-tag=TITLE | sed s/.*=//g)
+readonly ALBUM=$(metaflac "$INPUTFILE" --show-tag=ALBUM | sed s/.*=//g)
+readonly GENRE=$(metaflac "$INPUTFILE" --show-tag=GENRE | sed s/.*=//g)
+readonly TRACKNUMBER=$(metaflac "$INPUTFILE" --show-tag=TRACKNUMBER | sed s/.*=//g)
+readonly DATE=$(metaflac "$INPUTFILE" --show-tag=DATE | sed s/.*=//g)
+readonly RRL=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_REFERENCE_LOUDNESS | tr '=' ':')
+readonly RTG=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_TRACK_GAIN | tr '=' ':')
+readonly RTP=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_TRACK_PEAK | tr '=' ':')
+readonly RAG=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_ALBUM_GAIN | tr '=' ':')
+readonly RAP=$(metaflac "$INPUTFILE" --show-tag=REPLAYGAIN_ALBUM_PEAK | tr '=' ':')
 
 # ID3v2.3 tagging with cover and without cover
 eyed3Command="eyeD3 --v2 --to-v2.3 \