82 lines
2.4 KiB
Bash
82 lines
2.4 KiB
Bash
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#!/bin/bash
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# INPUT=$(pwd)/"output.txt"
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INPUT=$(pwd)/$1
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# ROOT_DIR="/tmp/test/root"
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ROOT_DIR="/tmp/day7"
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PWD="$ROOT_DIR"
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function pwd_() {
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echo $(pwd) | sed "s($ROOT_DIR(("
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}
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function createFS() {
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mkdir -p "$ROOT_DIR"
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rm -r "$ROOT_DIR"
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mkdir "$ROOT_DIR"
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cd "$ROOT_DIR"
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while read line; do
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case $line in
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"$ cd "*)
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dirname=$(echo $line | awk '{print $3}')
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if [[ $dirname == "/" ]]; then
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cd "$ROOT_DIR"
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continue
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fi
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# echo ">> cd $dirname"
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mkdir -p $dirname || exit 1
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cd $dirname
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;;
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"\$ ls")
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# echo ">> ls"
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;;
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"dir "*)
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# echo ">> dir"
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;;
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*) # output of ls
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file=$(echo $line | awk '{print $2}')
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size=$(echo $line | awk '{print $1}')
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fallocate -l $(expr $size) $file
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# touch $file
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;;
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esac
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done < $INPUT;
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}
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FS_SIZE=70000000
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REQ_SIZE=30000000
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function getDirsize() {
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cd "$ROOT_DIR"
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ifs=$IFS; IFS=$'\n'
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du_output=($(du -b --apparent-size .))
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# subtract the size of the directory without its contents from the total size
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# 40 for dir itself
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# 60 for each sub(sub)dir
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# 20 for each file in (sub)dir
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for (( i = 0; i < "${#du_output[@]}"; i++)) do
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line=${du_output[$i]}
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dirname=$(echo $line | awk '{print $2}')
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size=$(echo $line | awk '{print $1}')
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dirsize=$(ls -ld $dirname | awk '{print $5}') # size of directory without its contents
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subfiles=$(find $dirname -type f | wc -l)
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subdirs=$(find $dirname -type d | wc -l)
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du_output[$i]="$(expr $size + 20 - 60 "*" $subdirs - 20 "*" - $subfiles) $dirname"
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done
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# printf '%s\n' "${du_output[@]}"
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printf '%s\n' "${du_output[@]}" | awk 'BEGIN{sum=0} {if ($1 <= 100000) {sum+=($1)}} END{print "Total size of all dirs<100000: "sum-0}'
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IFS=$ifs
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ROOT_SIZE=$(echo ${du_output[-1]} | awk '{print $1}')
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minSize=$(expr $REQ_SIZE - $FS_SIZE + $ROOT_SIZE)
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# echo "minSize $minSize"
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printf '%s\n' "${du_output[@]}" | awk -v min_size=$minSize 'BEGIN{file=""; size=99999999} {if ($1 >= min_size && $1 < size) {size=$1; file=$2}} END{print "You should delete "file" size("size")"}'
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}
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createFS
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getDirsize
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