diff --git a/grep/generate_compressed_files b/grep/generate_compressed_files
new file mode 100644
index 0000000..898a233
--- /dev/null
+++ b/grep/generate_compressed_files
@@ -0,0 +1,101 @@
+#!/usr/bin/env bash
+
+# Usage:       ./generate_compressed_files
+#                or
+#              bash generate_compressed_files
+# Description: (see scriptname!)
+# Author:      Patrick Neumann (patrick@neumannsland.de)
+# Version:     1.0
+# Date:        13.02.2019
+# License:     GPL3
+# Warranty:    This program is distributed WITHOUT ANY WARRANTY
+# Todo:        -
+
+# Notwendige Pakete
+DEBS="gzip"
+DEBS="${DEBS} bzip2"
+DEBS="${DEBS} xz-utils"
+DEBS="${DEBS} lzop"
+DEBS="${DEBS} zip"
+DEBS="${DEBS} unzip"
+DEBS="${DEBS} rar"
+DEBS="${DEBS} unrar"
+DEBS="${DEBS} p7zip-full"
+
+echo "Checking dependencies..."
+for deb in ${DEBS} ; do
+  if ! dpkg -s "${deb}" 2>&1 >/dev/null ; then
+    sudo apt install "${deb}" --assume-yes
+  fi
+done
+
+# Zielverzeichnis
+DIRECTORY="compressed_files"
+FILE="file.txt"
+
+echo "Creating target directory..."
+mkdir "${DIRECTORY}"
+cd "${DIRECTORY}"
+
+# Testdatei
+echo "Generating text file..."
+cat <<EOF > "${FILE}"
+Eins
+eins zwei
+zWei
+zwei drei
+drEi
+drei vier
+vieR
+vier eins
+EOF
+
+# .txt -> .txt.gz
+echo "Generating .gz file..."
+gzip --keep "${FILE}"
+
+# Datei mit falscher Dateinamenserweiterung
+echo "Generating file with wrong extension..."
+cp "${FILE}".gz wrong_extension.txt.bz2
+
+# .txt -> .txt.bz2
+echo "Generating .bz2 file..."
+bzip2 --keep "${FILE}"
+
+# .txt -> .txt.xz
+echo "Generating .xz file..."
+xz --keep "${FILE}"
+# .txt -> .txt.lzma
+echo "Generating .lzma file..."
+xz --keep --format=lzma "${FILE}"
+
+# .txt -> .txt.lzop
+echo "Generating .lzop file..."
+lzop --keep "${FILE}"
+
+# .txt -> .txt.zip
+echo "Generating .zip file..."
+zip --quiet "${FILE}".zip "${FILE}"
+
+# .txt -> .txt.rar
+echo "Generating .rar file..."
+rar a -inul "${FILE}".rar "${FILE}"
+
+# .txt -> .txt.7z
+echo "Generating .7z file..."
+7z a "${FILE}".7z "${FILE}" >/dev/null
+# .txt -> .txt.lzma2
+echo "Generating .lzma2 file..."
+7z a -m0=lzma2 "${FILE}".lzma2 "${FILE}" >/dev/null
+
+# symbolic link
+echo "Generating symbolic link..."
+ln -s "${FILE}" "./symlink"
+
+echo "Generating directory..."
+# directory
+mkdir "./directory"
+
+echo "Done."
+
+exit 0
\ No newline at end of file
diff --git a/grep/generate_files_with_problematic_names b/grep/generate_files_with_problematic_names
new file mode 100644
index 0000000..5e27d55
--- /dev/null
+++ b/grep/generate_files_with_problematic_names
@@ -0,0 +1,82 @@
+#!/usr/bin/env bash
+
+# Usage:       ./generate_files_with_problematic_names
+#                or
+#              bash generate_files_with_problematic_names
+# Description: (see scriptname!)
+# Author:      Patrick Neumann (patrick@neumannsland.de)
+# Version:     1.0
+# Date:        27.02.2018
+# License:     GPL3
+# Warranty:    This program is distributed WITHOUT ANY WARRANTY
+# Todo:        Find and add more problems in filenames!?
+#                Possible candidates: < > , ; = [ ] " / | \
+
+# Zielverzeichnis
+FWPN="files_with_problematic_names"
+
+echo "Creating target directory..."
+mkdir "${FWPN}"
+cd "${FWPN}"
+
+# fwpn = f(iles)w(ith)p(roblematic)n(ames)
+# meier, meyer, mayer are mayr similar lastnames
+
+# regular file
+echo "Creating regular file..."
+echo "fwpn:word:meier" > word.txt
+
+# regular file
+echo "Creating file with underscore..."
+echo "fwpn:underscore:meyer" > underscore_instead_of_space.txt
+
+# hidden file
+echo "Creating hidden file..."
+echo "fwpn:hidden:mayer" > .hidden.txt
+
+# leading ..
+echo "Creating file with two leading dots..."
+echo "fwpn:two dots:mayr" > ..two_dots.txt
+
+# leading ...
+echo "Creating file with three leading dots..."
+echo "fwpn:three dots:meier" > ...three_dots.txt
+
+# leading hyphen (-)
+echo "Creating file with leading hyphen..."
+echo "fwpn:leading hyphen:meyer" > ./-leading_hyphen.txt
+
+# star (*)
+echo "Creating file with star..."
+echo "fwpn:with star:mayer" > with_*.txt
+
+# backslash (\)
+echo "Creating file with backslash..."
+echo "fwpn:with backslash:mayr" > "with_\.txt"
+
+# (leading) blank
+echo "Creating file with leading blank..."
+echo "fwpn:blank at the beginning:meier" > " blank.txt"
+
+# blank (separator)
+echo "Creating file with blank..."
+echo "fwpn:blank as separator:meyer" > "blank as separator.txt"
+
+# newline
+echo "Creating file with newline..."
+echo "fwpn:newline as separator:mayer" > "newline_as
+separator.txt"
+
+# tabulator
+echo "Creating file with tablulator..."
+echo "fwpn:tabulator as separator:mayr" > tab_as$'\t'separator.txt
+
+# questionmark (?)
+echo "Creating file with questionmark..."
+echo "fwpn:with questionmark:meier" > "with_?.txt"
+
+# colon (:)
+echo "Creating file with colon..."
+echo "fwpn:colon:meyer" > with_:.txt
+
+exit 0
\ No newline at end of file
diff --git a/kali/airodump-script b/kali/airodump-script
index 03c26bf..289278e 100755
--- a/kali/airodump-script
+++ b/kali/airodump-script
@@ -9,6 +9,8 @@
 # Platform:    Kali Linux (tested: 2018.2)
 # Version:     1.0
 # Date:        24.08.2018
+# Link:
+#   https://vcs.neumannsland.de/casualscripter/shell-scripting/src/branch/master/kali/airodump-script
 # License:     GPL3
 # Warranty:    This program is distributed WITHOUT ANY WARRANTY
 
diff --git a/kali/make_kali-usb-stick_persistent b/kali/make_kali-usb-stick_persistent
index f55ddd6..d0c7da4 100755
--- a/kali/make_kali-usb-stick_persistent
+++ b/kali/make_kali-usb-stick_persistent
@@ -6,10 +6,12 @@
 # Description: Writes a kali.iso to an usb stick (optional) and
 #                adds persistence to it step by step.
 # Author:      Patrick Neumann (patrick@neumannsland.de)
-# Platform:    Kali Linux (tested: 2018.2) or
+# Platform:    Kali Linux (tested: 2018.4) or
 #              Debian GNU/Linux (tested: 9.5)
-# Version:     1.0
-# Date:        24.08.2018
+# Version:     1.01
+# Date:        30.01.2019
+# Link:
+#   https://vcs.neumannsland.de/casualscripter/shell-scripting/src/branch/master/kali/make_kali-usb-stick_persistent
 # License:     GPL3
 # Warranty:    This program is distributed WITHOUT ANY WARRANTY
 
@@ -64,7 +66,7 @@ if blkid "${USBSTICK}"3 | grep -F persistence &> /dev/null ; then
 fi
 
 # add 3rd partition to the end of the usb stick
-FREE="$( parted -m /dev/sdd print free | grep -F free | tail -n 1 )"
+FREE="$( parted -m "${USBSTICK}" print free | grep -F free | tail -n 1 )"
 START="$( printf "${FREE}" | awk -F ":" '{ print $2; }' )"
 END="$( printf "${FREE}" | awk -F ":" '{ print $3; }' )"
 parted "${USBSTICK}" mkpart primary "${START}" "${END}"
diff --git a/kali/wireshark_with_no_ip b/kali/wireshark_with_no_ip
index bb3b3e1..3317ab4 100755
--- a/kali/wireshark_with_no_ip
+++ b/kali/wireshark_with_no_ip
@@ -6,9 +6,11 @@
 # Description: Brings a nic up without an ip address and without arp and
 #                starts wireshark really passive.
 # Author:      Patrick Neumann (patrick@neumannsland.de)
-# Platform:    Kali Linux (tested: 2018.2)
-# Version:     1.0
-# Date:        24.08.2018
+# Platform:    Kali Linux (tested: 2018.4)
+# Version:     1.01
+# Date:        30.01.2019
+# Link:
+#   https://vcs.neumannsland.de/casualscripter/shell-scripting/src/branch/master/kali/wireshark_with_no_ip
 # License:     GPL3
 # Warranty:    This program is distributed WITHOUT ANY WARRANTY
 
@@ -31,6 +33,9 @@ ip addr flush dev "${NIC}"
 ip route flush dev "${NIC}"
 echo > /etc/resolv.conf
 
+# deactivate ipv6
+echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6
+
 # configure nic without ip address and without arp
 ip addr add 0.0.0.0/32 dev "${NIC}"
 ip link set "${NIC}" arp off up