Find out each file position opened by a process

progress-all.sh

#!/bin/bash
for fd in /proc/$1/fd/*; do
    if [ ! -f "$fd" ]; then continue; fi
    fdnum=$(basename "$fd")
    fdinfo=/proc/$1/fdinfo/$fdnum
    name=$(readlink "$fd")
    size=$(stat -c "%s" "$name" 2>/dev/null || stat -c "%s" "$fd")
    progress=$(grep ^pos "$fdinfo" | awk '{print $2}')
    if [ $size -eq "0" ]; then
        echo '['$fdnum']' "$name"':' $progress'/'$size
    else
        echo '['$fdnum']' "$name"':' $progress'/'$size '('$((100*$progress / $size))'%)'
    fi
done