| // http://stackoverflow.com/a/29963675/983835 | |
| struct ScopeCall<F: FnOnce()> { | |
| c: Option<F> | |
| } | |
| impl<F: FnOnce()> Drop for ScopeCall<F> { | |
| fn drop(&mut self) { | |
| self.c.take().unwrap()() | |
| } | |
| } |
| #!/bin/bash | |
| SOURCE="${BASH_SOURCE[0]}" | |
| while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink | |
| DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )" | |
| SOURCE="$(readlink "$SOURCE")" | |
| [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located | |
| done | |
| DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )" | |
| echo $DIR |
| package main | |
| import ( | |
| "log" | |
| "net" | |
| "time" | |
| ) | |
| func perr(err error) { | |
| if err != nil { |
| #include <opencv2/opencv.hpp> | |
| #include <opencv2/calib3d/calib3d.hpp> | |
| #include <opencv2/core/core.hpp> | |
| #include <opencv2/highgui/highgui.hpp> | |
| #include <iostream> | |
| #include <sstream> | |
| #include <string> | |
| #include <fcntl.h> | |
| #include <unistd.h> | |
| #include <sys/ioctl.h> |
| package main | |
| import ( | |
| "bytes" | |
| "fmt" | |
| "os" | |
| "strings" | |
| "github.com/jmoiron/sqlx" | |
| _ "github.com/mattn/go-sqlite3" |
| # nixos-rebuild switch | |
| building Nix... | |
| building the system configuration... | |
| updating GRUB 2 menu... | |
| activating the configuration... | |
| setting up /etc... | |
| # add this to configuration.nix | |
| virtualisation = { | |
| libvirtd = { |
| { config, lib, pkgs, ... }: | |
| let | |
| cfg = { | |
| hostName = "zion"; | |
| ceph = { | |
| enable = true; | |
| publicIP = "127.0.0.1"; | |
| privateIP = "127.0.0.1"; |
Brought to you by Headjack
FFmpeg is one of the most powerful tools for video transcoding and manipulation, but it's fairly complex and confusing to use. That's why I decided to create this cheat sheet which shows some of the most often used commands.
Let's start with some basics:
ffmpeg calls the FFmpeg application in the command line window, could also be the full path to the FFmpeg binary or .exe file
| #!/usr/bin/env bash | |
| # | |
| # Scan availible wifi networks | |
| # https://unix.stackexchange.com/questions/399222/jq-parse-colon-separated-value-pairs | |
| # TODO see if you can pipe this directly into jq | |
| nmcli_output=$(nmcli --mode multiline dev wifi) | |
| # set all variables from nmcli | |
| network=$(echo "$nmcli_output" | grep SSID: \ |
Original post : https://unix.stackexchange.com/a/310699
nmcli con add type wifi ifname wlan0 con-name Hostspot autoconnect yes ssid Hostspot
nmcli con modify Hostspot 802-11-wireless.mode ap 802-11-wireless.band bg ipv4.method shared
nmcli con modify Hostspot wifi-sec.key-mgmt wpa-psk
nmcli con modify Hostspot wifi-sec.psk "veryveryhardpassword1234"