IQAndreas

# Caesar cipher encoding
echo "THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG" | tr '[A-Z]' '[X-ZA-W]'
# output: QEB NRFZH YOLTK CLU GRJMP LSBO QEB IXWV ALD

# Caesar cipher decoding
echo "QEB NRFZH YOLTK CLU GRJMP LSBO QEB IXWV ALD" | tr '[X-ZA-W]' '[A-Z]'
# output: THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG


# Can also be adjusted to ROT13 instead

CMCDragonkai

# do it once
seq 1 | parallel -n0 "curl -H 'Content-Type: application/json' http://httpbin.org/post -X POST -d '{\"url\":\"http://google.com/\"}'"

# do it twice
seq 2 | parallel -n0 "curl -H 'Content-Type: application/json' http://httpbin.org/post -X POST -d '{\"url\":\"http://google.com/\"}'"

# do it 4 times, but at 2 a time
seq 4 | parallel -n0 -j2 "curl -H 'Content-Type: application/json' http://httpbin.org/post -X POST -d '{\"url\":\"http://google.com/\"}'"

# you can also put all your commands into a file

magnetikonline

Bash getopts template

• Example
• Reference

#!/bin/bash -e

function usage {
	cat <&2

sneak

# datavibe.net spamassassin local config as of 2015-07-17

#   Add *****SPAM***** to the Subject header of spam e-mails
rewrite_header Subject *****SPAM*****

#   Save spam messages as a message/rfc822 MIME attachment instead of
#   modifying the original message (0: off, 2: use text/plain instead)
report_safe 1

add_header all RelaysUntrusted _RELAYSUNTRUSTED_

vivianspencer

Debian 8 Hardening

1. Update root's mail recipient. Open /etc/aliases replacing [email protected] with an administrator's email address. This is where logs will be emailed.

   root:     [email protected]
   

2. Update the the default umask to 027. Edit the file /etc/init.d/rc and change the following setting:

umask 027

DecisionNerd

#!/bin/bash
# CSV to JSON converter using BASH
# original script from http://blog.secaserver.com/2013/12/convert-csv-json-bash/
# thanks SecaGuy!
# Usage ./csv2json.sh input.csv > output.json
 
input=$1
 
[ -z $1 ] && echo "No CSV input file specified" && exit 1
[ ! -e $input ] && echo "Unable to locate $1" && exit 1

srugano

# CONFIGURATION FOR USING SMS KANNEL WITH RAPIDSMS
#
# For any modifications to this file, see Kannel User Guide
# If that does not help, see Kannel web page (http://www.kannel.org) and
# various online help and mailing list archives
#
# Notes on those who base their configuration on this:
#  1) check security issues! (allowed IPs, passwords and ports)
#  2) groups cannot have empty rows inside them!
#  3) read the user guide

garethpaul

Development Phase:

Step 1: Create Certificate .pem from Certificate .p12
Command: openssl pkcs12 -clcerts -nokeys -out apns-dev-cert.pem -in apns-dev-cert.p12

Step 2: Create Key .pem from Key .p12
Command : openssl pkcs12 -nocerts -out apns-dev-key.pem -in apns-dev-key.p12

Step 3: Optional (If you want to remove pass phrase asked in second step)
Command : openssl rsa -in apns-dev-key.pem -out apns-dev-key-noenc.pem

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

greencoder

# Note: You MUST have curl 7.47+ with http/2 support compiled in

curl -v \
-d '{"aps":{"alert":"<message>","badge":42}}' \
-H "apns-topic: <bundle id>" \
-H "apns-priority: 10" \
--http2 \
--cert <certificate file> \
https://api.development.push.apple.com/3/device/<device token>