Added hashify filename

hashify-filename/README.md

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+## Hashify Filename
+
+With this little script you can randomize the names of given files. File extension won't be changed.
+
+
+#### Arguments
+
+The file takes several arguments
+
+`-r` - recursive: If any directory where given while calling this command, all files in it will be renamed recursively.
+
+`-a` - all (the name is a little misleading): Normally directories are not renamed, but with this argument they will.
+
+`-l LENGHT` - lenght: The lenght of the randomized filenames (default is 16). Replace `LENGHT` with the lenght the randomized names should have.
+
+#### Usage
+
+```
+$ randomize-filename.sh -r .
+```

hashify-filename/hashify-filename.sh

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+#!/bin/bash
+
+SAVEIFS=$IFS
+IFS=$(echo -en "\n\b")
+
+recursive=false
+
+while getopts ":r?" opt; do
+    case $opt in
+        r)
+            recursive=true
+            ;;
+        *)
+            echo $usage
+            exit 1
+    esac
+done
+shift $((OPTIND-1))
+
+function rename() {
+    local base="$1"
+    shift 1
+
+    for file in $*; do
+        file=${file//[\\]/}
+        filepath="$base/$file"
+        ext="${file##*.}"
+        if [ "$ext" == "$file" ]; then
+            ext=""
+        else
+            ext=".$ext"
+        fi
+        
+        if [ -d $filepath ]; then
+            if $recursive && [ ! -L $filepath ]; then
+                rename "$filepath" $(ls -b $filepath)
+            fi
+            continue
+        fi
+        filename="$(md5sum $filepath | awk '{print $1}')$ext"
+        mv "$filepath" "$base/$filename"
+    done
+}
+
+if [ "$#" -eq 0 ]; then
+    echo "At least one file must be given"
+    exit 1
+fi
+
+declare -a files=()
+
+for file in $@; do
+    if [[ $file != /* ]]; then
+        file="$(pwd)/$file"
+    fi
+    files+=("$file")
+done
+
+rename "/" "${files[@]}"
+
+IFS=$SAVEIFS