mbbx6spp

Best UNIX Shell tools

These are a list of usages of shell commands I can't live without on UNIX-based systems.

Install

Mac OS X

Using Homebrew (yes, I am opinionated) you can install the following tools with the following packages:

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

earthgecko

#!/bin/bash
# bash generate random alphanumeric string
#

# bash generate random 32 character alphanumeric string (upper and lowercase) and 
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1

niallo

<?php
// Get this at your MongoLab.com user page
$MONGOLAB_API_KEY = 'XXXXXXXXXXXXXX';
$DB = 'mydb';
$COLLECTION = 'mycollection';

$name = $_POST['fullName'];
$email = $_POST['email'];
$phone = $_POST['phoneNumber'];
$src  = $_POST['src'];

openrijal

#!/usr/bin/env bash
cat /var/log/apache2/access_log | awk '{print $1}' > ips.txt
uniq ips.txt > uniqips.txt
IPS=`cat uniqips.txt`
for i in $IPS
do
  echo "$i,`geoiplookup $i | cut -d "," -f2 | sed -e 's/^[\t]//'`" >> ipinfo.csv
done

magnetikonline

Nginx FastCGI response buffer sizes

By default when Nginx starts receiving a response from a FastCGI backend (such as PHP-FPM) it will buffer the response in memory before delivering it to the client. Any response larger than the set buffer size is saved to a temporary file on disk.

This process is outlined at the Nginx ngx_http_fastcgi_module page manual page.

• Introduction
• Determine actual FastCGI response sizes
• Setting the buffer size
• Verifying results

sheharyarn

#!/bin/bash
 
MONGO_DATABASE="your_db_name"
APP_NAME="your_app_name"

MONGO_HOST="127.0.0.1"
MONGO_PORT="27017"
TIMESTAMP=`date +%F-%H%M`
MONGODUMP_PATH="/usr/bin/mongodump"
BACKUPS_DIR="/home/username/backups/$APP_NAME"

tmcallaghan

storage:
    dbPath: "./data"
    directoryPerDB: true
    journal:
        enabled: true
    engine: "wiredTiger"
    wiredTiger:
        engineConfig: 
            cacheSizeGB: 8
            journalCompressor: snappy

freyr

<?php

# Demonstrates how to add new contact to campaign.

# JSON::RPC module is required
# available at http://github.com/GetResponse/DevZone/blob/master/API/lib/jsonRPCClient.php
require_once 'jsonRPCClient.php';

# your API key is available at
# https://app.getresponse.com/my_api_key.html

squadbox

#!/bin/bash

# cool_gpu2.sh  This script will enable or disable fixed gpu fan speed
#
# Description:  A script to control GPU fan speed on headless (non-X) linux nodes

# Original Script by Axel Kohlmeyer <akohlmey@gmail.com>
# https://sites.google.com/site/akohlmey/random-hacks/nvidia-gpu-coolness
#
# Modified for newer drivers and removed old work-arounds