Initial verion of notes.sh
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README.md
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README.md
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# notes.sh: plain-text notes with IMAP synchronization
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This project allows you to keep plaintext notes, and attach files to them (like images, PDFs, etc). The plaintext stays plaintext, easily greppable, and with every note in its own file.
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What makes it special is that it uses a Maildir format to store notes. This allows you to easily sync your notes with any mail server, and have your notes accessible on the go through your email client.
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NB: This is alpha software, use with caution.
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notes.sh
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notes.sh
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#!/bin/bash
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set -e
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DATE_FORMAT="%a, %d %b %Y %H:%M:%S %z"
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BASEDIR=~/Maildir/personal/Notes
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PID=$$
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if [ ! -d "$BASEDIR" ]; then
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mkdir -p "$BASEDIR"/{tmp,new,cur}
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fi
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uuid()
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{
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local N B T
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for (( N=0; N < 16; ++N ))
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do
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B=$(( $RANDOM%255 ))
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if (( N == 6 ))
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then
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printf '4%x' $(( B%15 ))
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elif (( N == 8 ))
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then
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local C='89ab'
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printf '%c%x' ${C:$(( $RANDOM%${#C} )):1} $(( B%15 ))
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else
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printf '%02x' $B
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fi
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for T in 3 5 7 9
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do
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if (( T == N ))
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then
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printf '-'
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break
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fi
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done
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done
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echo
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}
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get_header() {
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FILE="$1"
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HEADER="$2"
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echo $(grep -m1 "^${HEADER}: " < "$FILE" | sed -n "s/^${HEADER}: \(.*\)$/\1/p")
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}
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get_part() {
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FILE="$1"
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BOUNDARY="$2"
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NUM="$3"
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FILTER="\
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BEGIN { \
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rec=0; \
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body=0; \
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} \
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{ \
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if (\$0==\"--$BOUNDARY\" || \$0==\"--$BOUNDARY--\") { \
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if (body == 0) { \
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body=1; \
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} \
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rec=rec+1; \
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} \
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else if (body == 1 && rec==$NUM) { \
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print \$0 \
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} \
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}"
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awk "$FILTER" "$FILE"
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}
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unpack_part() {
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FILE="$1"
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DIR="$2"
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MIME_TYPE=$(get_header "$FILE" Content-Type)
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DISPOSITION=$(get_header "$FILE" Content-Disposition)
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if [[ $DISPOSITION == *"attachment"* ]]; then
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ENCODING=$(get_header "$FILE" Content-Transfer-Encoding)
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FILENAME=$(echo $DISPOSITION | \
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sed -n 's/^.*filename="\{0,1\}\(.*\)"\{0,1\}$/\1/p')
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FILTER="\
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{ \
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if (body==1) {print \$0}\
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if (\$0~/^$/) {body=1} \
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} \
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"
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if [[ $ENCODING == *"base64"* ]]; then
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awk "$FILTER" "$FILE" | base64 --decode >> "$DIR/$FILENAME"
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else
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awk "$FILTER" "$FILE" >> "$DIR/$FILENAME"
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fi
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elif [[ $MIME_TYPE == *"text/plain"* ]]; then
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FILTER="\
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{ \
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if (body==1) {print \$0}\
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if (\$0~/^$/) {body=1} \
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} \
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"
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awk "$FILTER" "$FILE" >> "$DIR/note.md"
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elif [[ $MIME_TYPE == *"multipart/mixed"* ]]; then
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BOUNDARY=$(echo $MIME_TYPE | sed -n 's/^.*boundary="\(.*\)"$/\1/p')
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i=1
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while true; do
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TMP=$(mktemp --tmpdir="$DIR")
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get_part "$FILE" "$BOUNDARY" "$i" > "$TMP"
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((i++))
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if [ ! -s "$TMP" ]; then
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rm "$TMP"
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break
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fi
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#cat "$TMP"
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(unpack_part "$TMP" "$DIR")
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rm "$TMP"
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done
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elif [[ $MIME_TYPE == *"multipart/related"* ]]; then
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echo "multipart/related not yet supported"
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exit 1
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fi
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}
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unpack_mime() {
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FILE="$1"
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DIR="$2"
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DATE=$(get_header "$FILE" Date)
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SUBJECT=$(get_header "$FILE" Subject)
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MIME_TYPE=$(get_header "$FILE" Content-Type)
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MESSAGE_ID=$(get_header "$FILE" Message-Id)
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echo "Date: $DATE" > "$DIR/note.md"
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if [ ! -z "$MESSAGE_ID" ]; then
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echo "Message-Id: $MESSAGE_ID" >> "$DIR/note.md"
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fi
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echo "Subject: $SUBJECT" >> "$DIR/note.md"
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echo "" >> "$DIR/note.md"
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TMP=$(mktemp --tmpdir="$DIR")
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cat "$FILE" > "$TMP"
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(unpack_part "$TMP" "$DIR")
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rm "$TMP"
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}
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new_entry() {
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ENTRY_FILE=$(mktemp)
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vim -c ":set syntax=markdown" \
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-c "1 s/^/# /" \
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-c "norm $" \
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"$ENTRY_FILE"
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if [ -s "$ENTRY_FILE" ]; then
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MIME_TIMESTAMP=$(LC_ALL="en_US.UTF-8" date "+$DATE_FORMAT")
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UNIX_TIMESTAMP=$(date "+%s")
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HOSTNAME=$(hostname -s)
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SUBJECT=$(head -1 "$ENTRY_FILE")
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SUBJECT=${SUBJECT#"# "}
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RESULT=$(mktemp)
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echo "Date: $MIME_TIMESTAMP" >> "$RESULT"
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echo "MIME-Version: 1.0" >> "$RESULT"
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echo "Content-Type: text/plain; charset=utf-8" >> "$RESULT"
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echo "Content-Disposition: inline" >> "$RESULT"
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echo "Message-Id: <$(uuid)@notes.sh>" >> "$RESULT"
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echo "Subject: $SUBJECT" >> "$RESULT"
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echo "" >> "$RESULT"
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sed "1d" < "$ENTRY_FILE" >> "$RESULT"
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#cat "$RESULT"
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FILENAME="$UNIX_TIMESTAMP.${PID}_1.${HOSTNAME}:2,S"
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mv "$RESULT" "$BASEDIR/cur/$FILENAME"
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echo "done"
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fi
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}
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edit_entry() {
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unpack_mime "$1" ~/scratch/notes
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}
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list_entries() {
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grep -m1 -r "^Subject:" "$BASEDIR" | sed -n 's/^\(.*\):Subject: \(.*\)$/\1:\2/p'
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}
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usage() {
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echo "$0 {--new,--list,--edit,--help}"
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}
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while (( "$#" )); do
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case "$1" in
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-n|--new)
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new_entry
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exit 0
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;;
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-l|--list)
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list_entries
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exit 0
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;;
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-e|--edit)
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if [ -z "$2" ]; then
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echo "Misssing argument for $1"
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exit 1
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fi
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edit_entry "$2"
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exit 0
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;;
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*)
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usage
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exit 1
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;;
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esac
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done
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usage
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exit 1
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