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#!/bin/sh
#Variables
RUN=0
SLEEP=1
file -E $1 > /dev/null 2>&1
#Check for error in argument
if [ $? -gt 0 ]; then
echo "Error: missing or incorrect argument. Must be a valid file"
exit
fi
LAST_MOD=`stat $1 --printf=%Y`
#Initial run
pandoc -f markdown -t pdf -o /tmp/preview.pdf $1
zathura /tmp/preview.pdf &
PID=$(pidof -s zathura)
#Loop until zathura is closed
while [ $RUN -eq 0 ]; do
if [ `stat $1 --printf=%Y` -gt $LAST_MOD ]; then
LAST_MOD=`stat $1 --printf=%Y`
pandoc -f markdown -t pdf -o /tmp/preview.pdf $1
fi
sleep $SLEEP
RUN=$(ps --pid $PID; echo $?)
RUN=$(echo $RUN | rev | cut -c 1)
done
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