Shell Scripts Snippets

.0READMW.md

• She bang line, location of shell which bash
• Store arguments from bash in array args=("$@")
• Number of arguments count=("$#")
• Date NOW=$(date +"%m-%d-%Y")
• Print a random file files=(./*); printf "%s\n" "${files[RANDOM % ${#files[@]}]}"
• Create empty dir [ -d "./data" ] && mkdir data || rm -rf ./data/*

Iteration

Moves selected files

find $PWD -type f -not -name "*mp4" -not -name "*png" | xargs -I '{}' mv '{}' ~/Downloads/

Renaming files -n {Dry-run}

rename -n "s/[\W]+/./g" my_File

ls | while read -r FILE
do
   mv "$FILE" `echo $FILE | tr ' ' '_' | tr -d '[{}(),\!]' \
      | tr -d "\'" | tr '[A-Z]' '[a-z]' | sed 's/_-_/_/g'`
done

Pad digits for string comparison, e.g. Chapter1.mp3 to Chapter01.mp3 rename -ne 's/\d+/sprintf("%02d",$&)/e' -- *.mp3

Strip simple xml file into element, value pairs.

cat warrant.xml | grep -o "<[[:alpha:]]*>" \
 | sed "s/<//" | sed "s/>//" \
 | awk '{print "String "$1" = \""$1"\";"}'

Permissions

sudo chmod 755 /usr/local/lib
sudo chown -R $USER:admin /usr/local

SSH

** Find $PATH on remote host **

ssh rhost "echo \$PATH"

** Add ssh keys to remote host. **

cat ~/.ssh/id.pub | ssh rhost "cat >> ~/.ssh/authorized_keys"

diff & fdupes

** fdupes finding duplicate files, recursively. **

diff - b=ignore_space_change | r=recursive | q=quiet, only file name

fdupes -S -r /path/to/folder
fdupes -rdN dir/
diff -brq sr1 src2              

Bracket expansion

echo file{1..4}.txt

Restarting a program in windows, if not already running.

tasklist /FI "IMAGENAME eq Tunnelier.exe" 2>NUL | find /I /N "Tunnelier.exe">NUL
if "%ERRORLEVEL%"=="0" (
  echo Programm is running
) else (
	start "D" "C:\Program Files\Bitvise Tunnelier\Tunnelier.exe" -loginOnStartup
)	

Ubuntu house keeping

• Set java version sudo update-alternatives --config java
• Search for packages apt search openjdk-11-jdk

.alias.sh

alias fix-files="rename 's/[\W]+/./g'"
alias cgwsync="rsync -avurz /cygdrive/m/ nexus:/media/dhval/"
alias tun1="autossh -M 20092 -f -N -R 9922:localhost:22 dhval"
alias tun2="autossh -M 23092 -f -N -L 22:localhost:22 nexus"

.function.sh

#!/bin/bash

generate-thumbnails() {
	for filename in *.mp4; do
	    echo $filename
	    ffmpeg -i "$filename" -r 1/15 -vf scale=-1:120  -vcodec png capture-%002d.png 
	    sleep 1
	    echo $filename
		montage -title "Movie Name\nSubtitle" -geometry +4+4 capture-*.png "$filename".png
	    sleep 1
		rm capture-*.png
	done
}

maven-deploy() {
	mvn deploy:deploy-file \
	 -Durl=http://oa5tppjnet200.pa.lcl:8081/artifactory/simple/libs-release-local/ \
	 -Dfile=target/base-js-0-SNAPSHOT.jar \
	 -Dpackaging=jar \
	 -DgroupId=jnet.web.common.js \
	 -DartifactId=base-js \
	 -Dversion=1.0.9 \
	 -DrepositoryId=central
}

list_files() {
	files=(~/Movies/Hi_Movies/*)
	COUNT=${#files[@]}

	for ((i=0; i<=$COUNT; i++));
	do 
	  echo "${files[$i]}"
	done
}

### Queries pogplug over https page and spit out results ###
### Since we get result back in case of failures only, we have to to write cmd to file & execute it.
function exec_hbplug
{
  PORT=$1
  shift
  CMD="echo \"$*\" > run.sh;chmod +x run.sh;sh run.sh > out 2>&1;cat out"
# CMD="echo \"$*\" > run.sh%3Bchmod %2Bx run.sh%3Bsh run.sh > out 2>%261%3Bcat out"
  ARG=$(echo $CMD | sed 's/+/%2B/g;s/ /+/g;s/;/%3B/g;s/&/%26/g')
echo $ARG
  curl -k -q "https://root:ceadmin@localhost:"$PORT"/sqdiag/HBPlug?action=command&command=""$ARG" 2>/dev/null | sed '/^$/d;1,2d;$d'
#  while read r;do echo $r;done < /tmp/plug
}

# Remove unwanted characters.
function fname {
	echo $(basename "$1" | tr -d ")(][" | sed -e 's/ /\./g;s/(/\\\(/g;s/)/\\\)/g')
}

function handbrake {
# List all media files size > 100M. Escape space and bracket character
find /media/torrent -size +100M -type f -not -name "*.mp4" -not -name "*.part" | while read -r FILE
do
	filename=$(basename "$FILE")
	extension=${filename##*.}
	filename=${filename%.*}
	OUT="/media/transmission/"$(fname $filename)".mp4"

	[ ! -e "$OUT" ] && HandBrakeCLI -i "$FILE" -o "$OUT" -e x264 -q 22 -r 12 -B 64 -X 480 -O
done
}

alias swats="exec_hbplug $* 8443"
alias ipod="exec_hbplug $* 9443"

.gitignore

*.pid
*.tmp

abhi.sh

# *** Update this $AB__URL with your BROADCAST key e.g. rtmp://live.justin.tv/app/live_XXXXXXXX

source ~/conf/vars.sh

# -vcodec copy -acodec copy, use this if you run into codec issues.

OPT="-r 20 -s 640x360  -qscale:v 5  -vcodec copy -acodec libmp3lame -ar 44100 -b:a 64k -f flv"

# Some Meta information about your video

META="-metadata title=$file"

# -re (input) Read input at native frame rate, by default ffmpeg attempts to read the input(s) as fast as possible.

ffmpeg -re -f concat -i ~/tmp/list.txt $OPT -metadata title="$file" $AB_URL

alarm.sh

#!/bin/bash

OUT="/home/logs/hi.txt"
function is_offline {
	wget -q --tries=2 --timeout=3 http://google.com >/dev/null 2>&1 && return 1 || return 0
}
function wlan_stat {
	active=`ethtool wlan0 2> /dev/null | grep "Link detected: no" | grep -o no`
	if [ ! -z $active ] && [ $active == "no" ]; then
		return 1
	fi
	return 0
}
function reload {
	is_offline && shutdown -r now
}
function wifi {
wlan_stat=`ip link show wlan0 2> /dev/null | grep -o "state UP" | grep -o UP`
is_offline
if [ "$?" == 0 ]; then
	# ip link set wlan0 up && wpa_supplicant -iwlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf & dhcpcd wlan0
	echo "Attempt to restart wireless" >> $OUT
	systemctl restart wireless.service
	return 0
fi
return 1
}
function autosh {
	ip_info=`curl ipinfo.io/ip --connect-timeout 5 2> /dev/null`
	proxy_down=`ssh nexus "nc -vz localhost 9443" 2>&1 | grep -o "succeeded"`
	if [ ! -z $ip_info ] && [ -z $proxy_down ]; then
		echo "Attempt to restart autossh" >> $OUT
		systemctl restart autossh.service
	else
		echo "Active autossh !" >> $OUT
	fi
}

alias proxy="export http_proxy=http://localhost:11050/"

alias-kali-rpi.sh

tx30 () {
	ifconfig wlan2 down
	iw reg set BO
	iwconfig wlan2 txpower 30
	ifconfig wlan2 up
}

ipfwd () {
	iptables -t nat -F
	iptables -F
	iptables -t nat -A POSTROUTING -o wlan2 -j MASQUERADE
	iptables -A FORWARD -i wlan0 -o wlan2 -j ACCEPT
	echo '1' > /proc/sys/net/ipv4/ip_forward
	service hostapd restart
        service dnsmasq restart
}

alias wi_check="airmon-ng check"
wi() {
wi_check
}

wi2 () {
	airmon-ng check wlan2 kill
	wpa_supplicant -iwlan2 -c /etc/wpa_supplicant/wpa_supplicant.conf & dhcpcd wlan2
	service hostapd restart
	service dnsmasq restart
	route add default gw 192.168.1.1
}

alias reload="source alias.sh"
alias wi_scan="iwlist wlan2 scan"
alias mon="airodump-ng mon0"
alias wi_start="airmon-ng start wlan2"
alias wi_stop="airmon-ng stop wlan2"
alias wi_kill="airmon-ng check kill"
alias wpa="wpa_supplicant -iwlan2 -c /etc/wpa_supplicant/wpa_supplicant.conf & dhcpcd wlan2"
alias addgw="route add default gw 192.168.1.1"
alias dnsmasq="service dnsmasq start"
alias traffic="iftop  -f 'not ip dst net 192.168.1.0/24'"

arch-arm-hints.md

Cloning a partition

dd if=/dev/sda1 of=/dev/sdb1 bs=4096 conv=notrunc,noerror,sync

[Mount in](http://www.razva.ro/install-arch-linux-pogoplug-samba-pogoplug-4/) /etc/fstab

/dev/sdb1 /mnt/usbdrive ext4 defaults 0 0

Mount your usb drives, /dev/disk/by-path or /proc/partitions

mount -t vfat /dev/sda1 /mnt/usb

Mount as RW

mount -o rw,remount /

Mount as RO

mount -o ro,remount /

Format & FSCHK

fdisk -c=dos /dev/sda1

e2fsck –f /dev/sda1

Use c option to allow block to start from 63

resize2fs

Setup time, host name & change passwd.

timedatectl set-timezone America/New_York
timedatectl set-time "2014-08-11 15:45:54"
hostnamectl set-hostname alarm

Pacman.

pacman -Syu --ignore filesystem --ignore ca-certificates
pacman -S git dialog wireless_tools vim traceroute wpa_supplicant ddclient screen autossh rsync

See connected usb devices

lsusb

List devices

lsblk -f

Join wifi n/w through gui

wifi-menu

Join using netctl

/etc/netctl# install -m640 examples/wireless-wpa wireless vim /etc/netctl/wireless, set ssid & pwd, TimeoutUP=500, TimeoutCarrier=500

Manually connect to wifi.

iwconfig
ip link set wlan0 up
iwlist wlan0 scan
wpa_passphrase wifi_ssid "wifi_password" > /etc/wpa_supplicant.conf
wpa_supplicant -iwlan0 -c /etc/wpa_supplicant.conf & dhcpcd wlan0

Find pogoplug on network

for((i=10;i<255;i++)); do nc -vz -w 2 172.19.10.$i 22 2>&1 | grep open; done

cronie - crontab

crontab - [e|l]

iptables

Config location:

cat /etc/iptables/iptables.rules

Make rules persistent.

iptables-save

Log any outgoing going traffic towards internet.

iptables -A OUTPUT -p tcp -o eth0 ! -d 172.19.10.0/24 -j LOG --log-prefix='[netfilter]'

Disable port 443 accept from your host, to prevent Curl root access

iptables -A INPUT -p tcp --dport 443 ! -s 172.19.10.172 -j DROP

systemctl - service daemon

See all enabled services

systemctl list-unit-files | grep enabled

Disable logging, comment “#” out line in /etc/syslog-ng/syslog-ng.conf

systemctl < status | is-enabled | start | stop | enable> ddclient

journalctl -xn

Dynamic_DNS Ubuntu

Enable my Pogoplug services

/usr/lib/systemd/system/pogoplug.service
/usr/local/cloudengines/pogoplug.sh
/etc/pogoplug.conf
/usr/local/cloudengines/hbplug.conf

Curl root access

curl -k "https://root:[email protected]/sqdiag/HBPlug?action=command&command=ls";

Rasberry pi links

http://raspberrypi.stackexchange.com/questions/7987/wifi-configuration-on-arch-linux-arm http://gleenders.blogspot.com/2014/03/raspberry-pi-resizing-sd-card-root.html http://raspberrypi.stackexchange.com/questions/499/how-can-i-resize-my-root-partition http://qdosmsq.dunbar-it.co.uk/blog/2013/06/beginners-guide-to-arch-linux-on-the-raspberry-pi-part-2/comment-page-1/ http://archpi.dabase.com/ # general install guide

References :-

Qui's UBOOT Stuff

Qui's Interesting ARM stuff

ARM install instruction

arch-linux-pogoplug uBoot Flashing Utilities

Perfomance tunning

autosh.sh

export AUTOSSH_PIDFILE=~/autossh.pid
export AUTOSSH_LOGFILE=~/autossh.log
export AUTOSSH_POLL=60
export AUTOSSH_FIRST_POLL=30
export AUTOSSH_GATETIME=0
export AUTOSSH_DEBUG=1
#autossh -M 0 -4 -N dhval -R 9922:localhost:22 -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -o BatchMode=yes -o StrictHostKeyChecking=no
#autossh -M 0 -4 -N nexus -L 22:localhost:22 -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -o BatchMode=yes -o StrictHostKeyChecking=no
autossh -M 20092 -f -N -R 9922:localhost:22 dhval
autossh -M 23092 -f -N -L 22:localhost:22 nexus

autossh.service

# https://wiki.archlinux.org/index.php/Secure_Shell#Autossh_-_automatically_restarts_SSH_sessions_and_tunnels
# Location, /etc/systemd/system/autossh.service

[Unit]
Description=AutoSSH service
After=network.target

[Service]
Environment="AUTOSSH_GATETIME=0"
ExecStart=/usr/bin/autossh -M 0 -NR 9443:0.0.0.0:443 nexus -o ServerAliveInterval=600 -o ServerAliveCountMax=30 -o TCPKeepAlive=yes nexus

[Install]
WantedBy=multi-user.target
Alias=autossh.service

cmd.bat

REM This file generate stubs for the provided WSDL
REM Look available options http://axis.apache.org/axis2/java/core/docs/reference.html
:: -d     Valid databinding(s) are adb, xmlbeans, jibx and jaxbri (Default: adb).
:: -t  	  Generate Test Cases
:: --ns2p http://sample.org/schema/../foo/bar=foo.bar
:: -pn		  Specify port in multiple port service
:: -o		   output folder

set JAVA_HOME=C:\tools\jdk1.7.0_09
set PATH=C:\tools\jdk1.7.0_09\bin;%PATH%

set ANT_HOME=c:\tools\ant-1.8.4
set PATH=%PATH%;%ANT_HOME%\bin

set AXIS2_HOME=C:\tools\axis2-1.6.2\
set PATH=%PATH%;%AXIS2_HOME%\bin

set M2_HOME=C:\tools\maven-3.0.4
set M2=%M2_HOME%\bin
set PATH=%PATH%;%M2%

set PATH=%PATH%;C:\tools\

wsdl2java.bat -t -d xmlbeans -Ejavaversion 1.5 -uri wsdlfile.wsdl^
 -pn VehicleQuerySOAPPort --ns2p http://www.company.com/service/package/BackgroundCheck/1=package.webservice,^
http://www.company.com/niem/package/metadata/1=package.webservice.niem

REM invoke a batch command similar to shell function.
set "rsync=java -cp c:\tools\rsync4j\* com.github.fracpete.rsync4j.RSync -vur --progress"
%rsync%

fearfile-ztv.sh

OPT="-qscale:v 9 -vcodec copy -acodec copy -ar 44100 -b:a 16k -f flv"
META="-metadata title=$file"

source ~/conf/vars.sh

while (true); do
files=(~/btsync/fear-files/*)
file="${files[RANDOM % ${#files[@]}]}"

echo -e "*****\n Current file" $file "\n*****"

ffmpeg -re -i "$file" $OPT -metadata title="$file" $ZTV_URL
done

find-non-optimized-mp4.sh

I discovered some of my media won't play in plex even when encoded by handbrake. This script tries to look up video information using "mplayer" tool, any video that has fps as "nan" is the culprit. Probably it was encoded without --optimize or --fast-start flags.

# http://askubuntu.com/questions/249828/command-to-see-media-file-info-in-terminal
# http://askubuntu.com/questions/303454/get-information-about-a-video-from-command-line-tool
# http://forums.macrumors.com/showthread.php?t=1496052

find . -name "*.mp4" -print -exec \
 mplayer -vo null -ao null -identify -frames 0 {} 2>/dev/null \; \
 | grep -B 15 "nan fps" 2>/dev/null \
 | grep Playing \
 | cut -d " " -f 2

gfipm.gradle

apply plugin: 'java'

version = '1.0'
sourceCompatibility = 1.8
targetCompatibility = 1.8

//create a single (fat) Jar with all dependencies
task fatJar(type: Jar) {
  manifest {
        attributes 'Implementation-Title': 'Gradle Jar File Example',  
          'Implementation-Version': version
    }
    baseName = project.name + '-Fat'
    from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
    with jar
}

//create a jar file with libs
jar {
    baseName = project.name + '-Small'
 
    into('lib') {
        from 'lib'
    }

    manifest {
    attributes(
      'Manifest-Version': '1.0',
      'Class-Path': 'lib/NAMCommon.jar lib/nidp.jar lib/nxpe.jar'
    )
  }
}

dependencies {
  compile files('lib/NAMCommon.jar', 'lib/nidp.jar', 'lib/nxpe.jar')
}

handbrake.sh

#!/bin/bash
# You need to change SRC -- Sourse folder and DEST -- Destination folder

# The mp4 format is 480x270 

SRC=/media/fat/media/encode/
TOR=/media/torrent/
DEST=/media/fat/media/out/
DEST_EXT=mp4
HANDBRAKE_CLI=HandBrakeCLI

# Move all torrented mp4 files to destination directory.
find $TOR -mindepth 2 -type f -size +50M -not -name "*.part" -exec mv {} $DEST \;

# Normalize files names, handbrakes chokes on bad file name.
python ~/scripts/normalize.py

# List all media files size > 100M. Escape space and bracket character
find $SRC -size +100M -type f -not -name "*.mp400000000" -not -name "*.part" | while read -r FILE
do
        filename=$(basename "$FILE")
        extension=${filename##*.}
        filename=${filename%.*}
	
	echo "***************************** \n" $FILE "********************\n"
	       
       OUT="$DEST"$(echo $filename | tr -d '[)(]-' )".$DEST_EXT" 
       [ ! -e "$OUT" ] && echo "\n***\n --- $FILE  --- \n***\n"  "-->"  "$OUT --- \n\n" && echo "" | $HANDBRAKE_CLI -i "$FILE" -o "$OUT" -e x264 -q 22 -r 12 -B 64 -X 480 -O
done

handbrakecli.sh

#!/bin/bash

SRC="/Users/dhval/Downloads/"
DEST="/Users/dhval/Movies/"
DEST_EXT=mp4
HANDBRAKE_CLI=HandBrakeCLI


# List all media files size > 100M. Escape space and bracket character
find $SRC -size +100M -type f -name "*.mp4" -o -name "*.mkv" -o -name "*.avi" -o -name "*.wmv" | while read -r FILE
do
        filename=$(basename "$FILE")
        extension=${filename##*.}
        filename=${filename%.*}
       
       OUT="$DEST"$(echo $filename | sed -e 's/-/./g' | tr -d '[)(]-' )".$DEST_EXT" 
       [ ! -e "$OUT" ] && echo "\n\n --- $FILE"  "-->"  "$OUT --- \n\n" && echo "" | \
 			$HANDBRAKE_CLI -i "$FILE" -o "$OUT" -O --preset="iPad"
done

hindim.sh

OPT="-qscale:v 9 -cpuflags armv5te -vcodec copy -acodec copy -ar 44100 -b:a 16k -f flv"
META="-metadata title=$file"

source ~/conf/vars.sh

while (true); do
files=(~/btsync/hindi/*)
file="${files[RANDOM % ${#files[@]}]}"

echo -e "*****\n Current file" $file "\n*****"

ffmpeg -i "$file" $OPT -metadata title="$file" $AB_URL
done

iptables-kali.sh

#!/bin/bash

route del default gw 192.168.1.10
route add default gw 192.168.1.1

# Set Trace
set -x

### iptables for kali router ###

# Flush and create chains.

iptables -t mangle -F
iptables -t mangle  -X LOGGING
iptables -t mangle  -X IPHONE
iptables -t mangle  -X IPAD
iptables -t mangle  -X MAC
iptables -t mangle  -N TRAFFIC
iptables -t mangle  -N IPHONE
iptables -t mangle  -N IPAD
iptables -t mangle  -N MAC

# Filter table

iptables -F
iptables -X SNITCH
iptables -N SNITCH
iptables -X EVIL
iptables -N EVIL

# Halt on error
set -e

# Always pass traffic to local subnet,google,apple,idea cellular

iptables -t mangle  -A PREROUTING -d 192.168.1.1/24 -j RETURN
iptables -t mangle  -A PREROUTING -s 71.57.239.190 -j RETURN
iptables -t mangle  -A PREROUTING -d 71.57.239.190 -j RETURN
iptables -t mangle -A PREROUTING -p tcp ! --dport 32400 -m mac --mac-source fc:f8:ae:7e:eb:e0 -j DROP
iptables -t mangle -A PREROUTING -p tcp ! --dport 32400 -s 192.168.1.17 -j DROP
iptables -t mangle  -A PREROUTING -p tcp --match multiport --dports 80,443 -d 74.125.0.0/16 -j RETURN
iptables -t mangle  -A PREROUTING -p tcp --match multiport --dports 80,443 -d 17.178.0.0/16 -j RETURN
iptables -t mangle  -A PREROUTING -p tcp --match multiport --dports 80,443 -d 223.196.0.0/16 -j RETURN

# Devices specific traffics redirected to devices chains

iptables -t mangle -A PREROUTING -p tcp -m mac --mac-source 80:e6:50:82:e1:08 -j IPAD
iptables -t mangle -A PREROUTING -p tcp -m mac --mac-source 4c:8d:79:d7:49:a0 -j MAC
iptables -t mangle -A PREROUTING -p tcp -m mac --mac-source 4c:8d:79:5a:22:62 -j IPHONE

# Shape traffic (using traffic control)

iptables -t mangle -A PREROUTING -p tcp --match multiport --sports 80,443 -s 74.125.0.0/16 -j RETURN
iptables -t mangle -A PREROUTING -p tcp  --match multiport --dports 80,443 -j TRAFFIC
iptables -t mangle -A PREROUTING -p tcp  --match multiport --sports 80,443 -j TRAFFIC

# Chain for traffic control

iptables -t mangle  -A TRAFFIC -j MARK --set-mark 6

# Chain for iphone

iptables -t mangle -A IPHONE -m limit --limit 3/min -j LOG --log-prefix " :::: iphone denied :::: "
iptables -t mangle -A IPHONE -j DROP

# Chain for ipad

iptables -t mangle -A IPAD -m limit --limit 3/min -j LOG --log-prefix " :::: ipad denied :::: "
iptables -t mangle -A IPAD -j DROP

# Chain for mac

iptables -t mangle -A MAC -m limit --limit 3/min -j LOG --log-prefix " :::: MAC denied :::: "
iptables -t mangle -A MAC -j DROP

# Chain for evil (lil snitch) net

iptables -A EVIL -m limit --limit 5/min -j LOG --log-prefix " :::: EVIL !! :::: "
iptables -A EVIL -j DROP

# Chain for forwarded traffic

iptables -A SNITCH -p icmp -j RETURN
iptables -A SNITCH -m mac --mac-source 00:24:d6:50:d3:ee -j DROP
iptables -A SNITCH -s 192.168.1.17 -j DROP
iptables -A SNITCH -p tcp  --match multiport --dports 80,443,11050 -j RETURN
iptables -A SNITCH -m limit --limit 3/min -j LOG --log-prefix " :::: SNitCH :::: "
iptables -A SNITCH -j DROP

iptables -A FORWARD -d 46.4.223.213 -j EVIL  
iptables -A FORWARD  ! -d 192.168.1.1/24 -j SNITCH

set +x
set +e

justin-tv.sh

# Select a random file to stream to justin tv

files=(./video-files-dir/*)
file="${files[RANDOM % ${#files[@]}]}"
echo -e "*****\n Current file" $file "\n*****"

# Use fmpeg concat option instead
for file in *.mp4; do echo "file '$(pwd)/$file'"; done > "concatlist.txt" 

# *** Update this URL with your BROADCAST key e.g. rtmp://live.justin.tv/app/live_XXXXXXXX

URL="rtmp://live.justin.tv/app/live_58491283_y1twPWju7YvVVbCeM4tK18lRp8mLuinvalid"

# -vcodec copy -acodec copy, use this if you run into codec issues.

OPT="-r 20 -s 640x360  -qscale:v 5  -vcodec libx264 -acodec libmp3lame -ar 44100 -b:a 64k -f flv"

# Some Meta information about your video

META="-metadata title=$file"

# If you haven't install ffmpeg to broadcast to justin.tv using "rtmp://" protocol. Do brew install ffmpeg
# -re (input) Read input at native frame rate, by default ffmpeg attempts to read the input(s) as fast as possible.
ffmpeg -re -f concat -i "concatlist.txt" $OPT -metadata title="$file" $URL

justin.sh

#!/bin/bash

source ~/conf/vars.sh

echo  "To stop me :"
echo  "kill -stop $0"

PID_FILE=$(basename $0)".pid"
ABORT=0
COM=$1
PIPE=$2
STREAM=$3
URL=$4
FF_OPT="-r 20 -s 640x360  -qscale:v 5  -vcodec copy -acodec libmp3lame -ar 44100 -b:a 64k -f flv"

source ~/conf/vars.sh

echo  "$PID_FILE :  $$"
echo  "$$" "\t" "$(date)" "\t" "$@" >> $PID_FILE

trap  stop stop

stop() {
  echo "int stop";
  $ABORT=1
  exit 0
}

while (( $ABORT != 1 ));  do
  case "$1" in
  	-rt)
		echo "rtmp -y " $STREAM  "-o" $PIPE
		rtmpdump -r "rtmp://65.51.67.40:1935/rtplive" -a "rtplive"  -f "LNX 11,2,202,335" \
  		-W "http://www.reliableiptv.com/usa/player_s4_0.swf"  -p "http://www.reliableiptv.com" \
  		-y "$STREAM" -o $PIPE
  	;;
  	-ff)
		echo "ffmpeg -re -i" $PIPE $FF_OPT $URL
		ffmpeg -re -i $PIPE $ARM_OPT $URL
  	;;
  	*)
		echo "Invalid Option, Usage :"
		echo "-ff | -rt /tmp/stream reliable.stream justin.url"
  	;;
  	esac	
  echo  "TRY AGAIN !"
  sleep 20
done

normalize.py

#!/usr/bin/python

import os,re
from os.path import isfile, join

path = "/media/fat/media/encode/"
for file in [ f for f in os.listdir(path) if isfile(join(path, f)) and re.search("[^\w._-]", f) ]:
  f = re.sub("[^\w._-]", "-", file)
  newfile = join(path,f)
  oldfile = join(path,file)
  print oldfile + " --->>> " + newfile
  os.rename(oldfile, newfile)

osx-hosts.sh

[Route](https://developer.apple.com/library/mac/documentation/Darwin/Reference/Manpages/man8/route.8.html)

When on Linux, I know the command by head:

'''
sudo route add -net 10.1.0.0/16 gw 192.168.120.254
'''

On the Mac the route command is similar, but a bit different :

'''
sudo route -n add -net 10.1.0.0/16  172.19.10.1
'''

JAVA_HOME is expanded to /System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home.)

'''
export JAVA_HOME=$(/usr/libexec/java_home)
'''

(Mount the share: ~/Library/Preferences/nsmb.conf)[https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man8/mount_smbfs.8.html]

'''
mount_smbfs //username:[email protected]/share_name share_name/
mount_smbfs -d 755 -f 755 //weblogic/e$/Oracle/TEMP Temp/
umount shr_name
'''

The hosts file

'''
sudo nano /private/etc/hosts
dscacheutil -flushcache
'''

[Resize disk image](http://apple.stackexchange.com/questions/60613/change-dmg-capacity)

'''
hdiutil resize -size 25G /PATH/TO/DISK/IMAGE.dmg
'''

sendMessage.applescript

#

on run {targetBuddyPhone, targetMessage}
    tell application "Messages"
        set targetService to 1st service whose service type = iMessage
        set targetBuddy to buddy targetBuddyPhone of targetService
        send targetMessage to targetBuddy
    end tell
end run

shell-feat.sh

#!/bin/bash

# A for-in loop, if-fi

count=0;
for line in `cat $1`; do
	myHost=`echo $line | cut -d, -f 1 | tr -d "\'"`
	count=$(ping -4 -n $COUNT $myHost | grep -i "received" | awk -F',' '{ print $2 }' | awk -F'=' '{ print $2 }')
	if [ ! $count -eq 0 ]; then
		# 100% failed 
		echo "$line, '$(date +"%m-%d-%Y")'"
	fi
done

tr -d '\15' < $line.bak > $line

findp()
{
	local ipAdress=$(echo "dhvalm.dyndns.org" | xargs nslookup | grep -Eo '([[:xdigit:]]{1,3}\.){3}[[:xdigit:]]{1,3}' | xargs | awk '{print$3}')
	echo "dhvalm.dyndns.org >> " $ipAdress;
}

findp "dhvalm.dyndns.org"

tc.sh

TE=2kbps
CEIL=5kbps
case "$1" in
        hi)
                RATE=20kbps
                CEIL=35kbps
                ;;
        mi)
                RATE=10kbps
                CEIL=15kbps
                ;;
        lo)
                RATE=1kbps
                CEIL=2kbps
                ;;
        st)
                tc -s qdisc ls dev eth0
                exit 0
                ;;
        rm)
                tc qdisc del dev eth0 root
                echo "tc filter removed"
                exit 0
                ;;
        **)
                RATE=2kbps
                CEIL=5kbps
                ;;

esac
echo $RATE
echo $CEIL

tc qdisc del dev eth0 root
tc qdisc add dev eth0 root handle 1:0 htb default 10
tc class add dev eth0 parent 1:0 classid 1:10 htb rate $RATE ceil $CEIL prio 0
tc filter add dev eth0 parent 1:0 prio 0 protocol ip handle 6 fw flowid 1:10

trap-demo.sh

#!/bin/bash

###  http://stackoverflow.com/questions/11203201/how-to-stop-infinite-loop-in-bash-script-gracefully ###

echo  "To stop me :"
echo  "kill -stop $0"

PID_FILE=$(basename $0)".pid"
ABORT=0

echo  "$PID_FILE :  $$"
echo  "$$" > $PID_FILE

trap  stop stop

stop() {
  echo "int stop";
  $ABORT=1
  exit 0
}

#  Use (( since its numerical comparison

while (( $ABORT != 1 ));  do
  echo  "d"
  sleep 2
done

wireless.service

# https://wiki.archlinux.org/index.php/Wireless_network_configuration#Manual_wireless_connection_at_boot_using_systemd_and_dhcpcd
# Location, /etc/systemd/system/wireless.service
# e.g systemctl enable wireless.service

[Unit]
Description=Wireless network connectivity (wlan0)
Wants=network.target
Before=network.target
BindsTo=sys-subsystem-net-devices-wlan0.device
After=sys-subsystem-net-devices-wlan0.device

[Service]
Type=oneshot
RemainAfterExit=yes

ExecStart=/usr/bin/ip link set dev wlan0 up
ExecStart=/usr/bin/wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf
ExecStart=/usr/bin/dhcpcd wlan0
ExecStart=route add -net 71.57.239.0/24 gw 192.168.1.1

ExecStop=/usr/bin/ip link set dev wlan0 down

[Install]
WantedBy=multi-user.target