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View plot.awk
#!/usr/bin/awk -f
# This program is a copy of guff, a plot device. https://github.com/silentbicycle/guff
# My copy here is written in awk instead of C, has no compelling benefit.
# Public domain. @thingskatedid
# Run as awk -v x=xyz ... or env variables for stuff?
# Assumptions: the data is evenly spaced along the x-axis
# TODO: moving average
@jkstill
jkstill / proc_net_tcp_decode
Last active Aug 2, 2020
decode entries in /proc/net/tcp
View proc_net_tcp_decode
Decoding the data in /proc/net/tcp:
Linux 5.x /proc/net/tcp
Linux 6.x /proc/PID/net/tcp
Given a socket:
$ ls -l /proc/24784/fd/11
lrwx------ 1 jkstill dba 64 Dec 4 16:22 /proc/24784/fd/11 -> socket:[15907701]
@joemiller
joemiller / netpps.sh
Last active Jul 29, 2020
shell: quick linux scripts for showing network bandwidth or packets-per-second
View netpps.sh
#!/bin/bash
if [ -z "$1" ]; then
echo
echo usage: $0 network-interface
echo
echo e.g. $0 eth0
echo
echo shows packets-per-second
@maxcnunes
maxcnunes / curl-get-status-code-and-response-body.sh
Created Nov 24, 2015
Curl - Get status code and response body
View curl-get-status-code-and-response-body.sh
URL="http://stackoverflow.com/"
# store the whole response with the status at the and
HTTP_RESPONSE=$(curl --silent --write-out "HTTPSTATUS:%{http_code}" -X POST $URL)
# extract the body
HTTP_BODY=$(echo $HTTP_RESPONSE | sed -e 's/HTTPSTATUS\:.*//g')
# extract the status
HTTP_STATUS=$(echo $HTTP_RESPONSE | tr -d '\n' | sed -e 's/.*HTTPSTATUS://')
View VLC-Live-Transcoding.md

Live Transcoding

This is a collection of working commandline examples to show how one could use FFMpeg and VLC for live transcoding of video streams. All examples have been tested on OSX 10.7.5 with FFMPeg 1.1.3 and VLC 2.0.5 in early 2013.

Documentation links

@deanet
deanet / google.sh
Created Aug 22, 2012
Uploading File into Google Drive (because grive too many dependencies qt, xorg ? )
View google.sh
#!/bin/bash
## uploading to google
## rev: 22 Aug 2012 16:07
det=`date +%F`
browser="Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:13.0) Gecko/20100101 Firefox/13.0.1"
username="user@domain-apps.com"
password="password"
accountype="HOSTED" #gooApps = HOSTED , gmail=GOOGLE
@james2doyle
james2doyle / curl-smtp-email.sh
Last active Jun 6, 2020
Send SMTP email using cURL
View curl-smtp-email.sh
curl --connect-timeout 15 -v --insecure "smtp://smtp.example.com:25" -u "username:password"
\ --mail-from "sender@example.com" --mail-rcpt "destination@example.com"
\ -T email-contents.txt --ssl
@yeokm1
yeokm1 / Read-only FS on Arch Linux ARM.md
Last active Mar 23, 2020
Set up Arch Linux ARM on Raspberry Pi to boot from and use a read-only file-system
View Read-only FS on Arch Linux ARM.md

Read-only FS on Arch Linux ARM

Unlike your typical computer where you usually shutdown properly, I cannot rely on this during the use of my Raspberry Pi. If the Raspberry Pi is improperly shutdown too many times, data corruption in the file system leading to unbootable SD card may result. So we should use a read-only file system.

Full instructions and explanations are obtained from this link but you can run these commands directly. I modified some of the instructions for personal convenience.

Login with default username: alarm, password: alarm

#Optionally enable root over SSH. The rest of these instructions assume u are in root.
@akostadinov
akostadinov / xmr-stak.service
Last active Mar 18, 2020
Example xmr-stak systemd service unit file.
View xmr-stak.service
[Unit]
Description=xmr-stak miner
After=syslog.target network.target
[Service]
Type=simple
# interesting info about starting as regular user: https://bbs.archlinux.org/viewtopic.php?id=162297
User=username
LimitMEMLOCK=256M
EnvironmentFile=-/etc/sysconfig/xmr-stak
View _Example polkit rules_.md

These are only examples, for a few very common actions. You are expected to write your own rules for the rest. The syntax is regular JavaScript, but see the polkit(8) manpage for the object structure and available API. These examples are for polkit versions 106 and later, with the JS interpreter. They won't work with Debian's polkit v105.

  • If you don't know the action name, run pkaction:

    pkaction | grep cups
    
  • The possible results are YES, AUTH_SELF(_KEEP), AUTH_ADMIN(_KEEP), NO. Returning a result is final. Returning null will continue checking other rules.

  • Put your rules in /etc/polkit-1/rules.d/*.rules. (You can check everything in one giant addRule, or you can have a separate file and separate addRule for each program; it doesn't matter.)

You can’t perform that action at this time.