dir

#!/bin/sh

POSIXLY_CORRECT=yes
ND="0"
NF="0"
normalize="0"
ignore="0"
FILE_ERE=""
DIR_NEW=""

while getopts ":i:n" option;
do
    case $option in
    i) ignore=1;
       FILE_ERE=$OPTARG;;
    n) normalize=1;;
    *) echo "Use options [-i FILE_ERE] [-n] [DIR]";;
    esac
done

shift $(($OPTIND - 1))
DIR_NEW=${1#?}
if [ -z != $DIR_NEW ] && [ -d $DIR_NEW ]; then
    DIR=$DIR_NEW
elif [ -z != $DIR_NEW ] && [ -d != $DIR_NEW ]; then
    echo "Root directory doesn't exist!"
    exit 1
else
    DIR="."
fi

size_100B="0"
size_1KIB="0"
size_10KIB="0"
size_100KIB="0"
size_1MIB="0"
size_10MIB="0"
size_100MIB="0"
size_1GIB="0"
size_OVER="0"

print_hash ()
{
j="0"
while [ $j -lt $1 ]
    do
        printf "#"
        j=$((j+1))
    done
printf "\n"
}

file_size ()
{
size="$(wc -c <"$file")"
if [ "$size" -lt 100 ];then
    size_100B=$((size_100B+1))

elif [ "$size" -lt 1024 ];then
        size_1KIB=$((size_1KIB+1))

elif [ "$size" -lt 10240 ];then
        size_10KIB=$((size_10KIB+1))

elif [ "$size" -lt 1002400 ];then
        size_100KIB=$((size_100KIB+1))

elif [ "$size" -lt 1048576 ];then
        size_1MIB=$((size_1MIB+1))

elif [ "$size" -lt 10485760 ];then
        size_10MIB=$((size_10MIB+1))

elif [ "$size" -lt 104857600 ];then
        size_100MIB=$((size_100MIB+1))

elif [ "$size" -lt 1073741824 ];then
        size_1GIB=$((size_1GIB+1))

else
    size_OVER=$((size_OVER+1))
fi
}

FTLIST=""
string=""
NL=$'\n'
LENGTH="43"

file_type ()
{
short_string="$(file -b $1 | cut -c -40)"
if [ ${#short_string} -eq 40 ]; then
    short_string="${short_string}..."
else
    while [ ${#short_string} -lt $LENGTH ]
    do
        short_string="${short_string} "
    done
fi
string="${string} ${short_string}: ${NL}"
}

print_fthist ()
{
string="$(echo "$string" | sort | uniq -c | sort -n -r | cut -c 7-)"
echo "$(echo "$string" | cut -c 2- | head -n 10)"
}

search ()
{
cd "$1"
for file in $(ls)
do
    if [ $ignore == 1 ] && [ $file == $FILE_ERE ]; then
        a="42"
    else

        if [ -d "$file" ] && [ -r "$file" ]; then
            search $file
            ND=$((ND+1))

        elif [ -f "$file" ] && [ -r "$file" ]; then
            file_size $file
            file_type $file
            NF=$((NF+1))
        fi
    fi
done
cd ..
}

search "$DIR"

if [ "$DIR" != "." ]; then
    DIR=/$DIR
fi

echo "Root directory: $DIR"
echo "Directories: $ND"
echo "All files: $NF"
echo "File size histogram:"
printf "  <100 B  : "
print_hash $size_100B
printf "  <1 KiB  : "
print_hash $size_1KIB
printf "  <10 KiB : "
print_hash $size_10KIB
printf "  <100 KiB: "
print_hash $size_100KIB
printf "  <1 MiB  : "
print_hash $size_1MIB
printf "  <10 MiB : "
print_hash $size_10MIB
printf "  <100 MiB: "
print_hash $size_100MIB
printf "  <1 GiB  : "
print_hash $size_1GIB
printf "  >=1 GiB : "
print_hash $size_OVER
echo "File type histogram:"
print_fthist