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rename a section of a filename, i. e. example.1.{txt,conf,db} or 12345.1.{wav,ogg,mp3} and

change the 1 to a 2 in the filename while preserving the rest of it.

$ zmv -n '(.)(<->)(.[^.]#)' '$1$(($2+1))$3' # would rename x.0001.y to x.2.y. $ zmv -n '(.0#)(<->)(.[^.]#)' '$1$(($2+1))$3'

Rename files to lower case

$ zmv '*' '${(L)f}'

serially all files (foo.foo > 1.foo, fnord.foo > 2.foo, ..)

$ autoload zmv

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tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

ajorpheus

How to Change Open Files Limit on OS X and macOS

This text is the section about OS X Yosemite (which also works for macOS Sierra) from https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/#mac-os-x

The last time i visited this link it was dead (403), so I cloned it here from the latest snapshot in Archive.org's Wayback Machine https://web.archive.org/web/20170523131633/https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/

Mac OS X

To check the current limits on your Mac OS X system, run:

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#To Get List of Hardware
sudo networksetup -listallhardwareports

#To Disable IPv6 on Wifi Adapter
sudo networksetup -setv6off wi-fi

#To Disable IPv6 on Built-in Ethernet Adapter
sudo networksetup -setv6off Ethernet

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##Date and Time

=TIMEVALUE(SUBSTITUTE("{{OccurredAt}}"," at ", " ")) + DATEVALUE(SUBSTITUTE("{{OccurredAt}}"," at ", " "))

##Date

=DATEVALUE(SUBSTITUTE("{{OccurredAt}}"," at ", " "))

##Time

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#!/bin/bash

# Usage: slackpost <token> <channel> <message>

# Enter the name of your slack host here - the thing that appears in your URL:
# https://slackhost.slack.com/
slackhost=PUT_YOUR_HOST_HERE

token=$1

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How to convert SOCKS proxy (e.g Shadowsocks) to HTTP proxy

Step 1

Install Privoxy

brew install privoxy

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#!/bin/bash

# old values
OLD_CFLAGS=$CFLAGS
OLD_LDFLAGS=$LDFLAGS

# might fail.  This is okay.
make distclean
rm -rf `pwd`/build/ios

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Steps

1. Start docker before connecting vpn (to get local ip, eg 192.168.99.100)
   
   
2. After start, connect to VPN, then follow next steps
   
   
3. From: boot2docker/boot2docker#628
   Add port forwarding to the NAT'd adapter in VirtualBox, add:
   Rule 1: host IP=127.0.0.1 , port=2376 guest ip=[blank] , port=2376 like so:
   
   
   
4. From https://www.iancollington.com/docker-and-cisco-anyconnect-vpn/ \

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#!groovy
import groovy.json.JsonOutput
import groovy.json.JsonSlurper

/*
Please make sure to add the following environment variables:
HEROKU_PREVIEW=<your heroku preview app>
HEROKU_PREPRODUCTION=<your heroku pre-production app>
HEROKU_PRODUCTION=<your heroku production app>