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Junaid Khalid junaidk

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  • Berlin
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@junaidk
junaidk / signedUrl.go
Last active January 4, 2019 11:19
get signed url for S3 object
package main
import (
"cluster-manager/constants"
"crypto/tls"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/urfave/cli"
@junaidk
junaidk / server.txt
Created October 14, 2017 14:24
ssh helper utility
srv1 = ssh -i key-file-path ubuntu@10.10.10.10
srv2 = ssh -i key-file-path ubuntu@10.10.10.11
srv3 = ssh -i key-file-path ubuntu@10.10.10.12
@junaidk
junaidk / ec2.sh
Last active July 7, 2023 04:55
Get List of EC2 instances from All regions
# install aws cli first and configure it with credentials and default region
# the script will iterate over all regions of AWS
for region in `aws ec2 describe-regions --output text | cut -f4`
do
echo -e "\nListing Instances in region:'$region'..."
aws ec2 describe-instances --query "Reservations[*].Instances[*].{IP:PublicIpAddress,ID:InstanceId,Type:InstanceType,State:State.Name,Name:Tags[0].Value}" --output=table --region $region
done
@junaidk
junaidk / keybase.md
Created November 2, 2016 12:24

Keybase proof

I hereby claim:

  • I am junaidk on github.
  • I am junaidk (https://keybase.io/junaidk) on keybase.
  • I have a public key whose fingerprint is A8C1 F384 12DE CDE6 A761 F837 279E 502A 669B DD2C

To claim this, I am signing this object:

@junaidk
junaidk / show_wifi_clients.sh
Created October 28, 2016 09:48
Show Clients connected to Hotspot
#!/bin/bash
# show_wifi_clients.sh
# Shows MAC, IP address and any hostname info for all connected wifi devices
# written for openwrt 12.09 Attitude Adjustment
# modified by romano@rgtti.com from http://wiki.openwrt.org/doc/faq/faq.wireless#how.to.get.a.list.of.connected.clients
echo "# All connected wifi devices, with IP address,"
echo "# hostname (if available), and MAC address."
printf "# %-20s %-30s %-20s\n" "IP address" "lease name" "MAC address"
@junaidk
junaidk / gist:64ee1ef2677102101689
Last active September 9, 2015 13:40
.desktop file
[Desktop Entry]
Type=Application
Terminal=false
Name=Intellij Idea
Icon= path to icon
Exec= path to .sh file
-----------------
@junaidk
junaidk / 000-Cheat-Sheets.md
Last active May 5, 2019 23:46 — forked from JoshuaEstes/000-Cheat-Sheets.md
Cheat-Sheets

Developer Cheat Sheets

This are my cheat sheets that I have compiled over the years. Tired of searching Google for the same things, I started adding the information here. As time went on, this list has grown. I use this almost everyday and this Gist is the first bookmark on my list for quick and easy access.

I recommend that you compile your own list of cheat sheets as typing out the commands has been super helpful in allowing me to retain the information longer.

@junaidk
junaidk / purchases.csv
Created April 1, 2015 12:16
TxnID UserID TimeStampe ItemID Quantity UnitPrice
1 4122 17-09-2011 1:25 47 34 52.48
2 273 17-09-2011 1:53 278 24 82.62
3 3305 17-09-2011 1:55 183 50 52.49
4 3561 17-09-2011 9:37 343 46 55.94
5 1477 17-09-2011 10:07 313 44 56.19
6 1850 17-09-2011 11:30 361 22 89.13
7 1532 17-09-2011 11:48 304 22 78.63
8 3055 17-09-2011 15:16 174 41 39.46
9 1176 17-09-2011 17:40 130 32 73.18
@junaidk
junaidk / Unix.sh
Last active October 31, 2015 15:01
count character in each line of a file
# if number of occurrences of " , " is > 5 print the number
tr -d -c ',\n' < Users.csv | awk '{ if ( length >= 5) {print length;} }'
# if number of occurrences of " , " is > 5 print line number
tr -d -c ',\n' < Users.csv | awk '{ if ( length >= 5) {print NR;} }'
# read nth line from file
awk ' NR == 5' Users.csv
@junaidk
junaidk / user.md
Last active August 29, 2015 14:12
create user linux

create a new user

create user and add in group
sudo useradd -G 1000 user
make directory for user
mkdir /home/user