This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.
To capture the video (filesize: 19MB), using the free "QuickTime Player" application:
from subprocess import Popen, PIPE | |
from os import environ | |
def source(script, update=True, clean=True): | |
""" | |
Source variables from a shell script | |
import them in the environment (if update==True) | |
and report only the script variables (if clean==True) | |
""" |
import simplejson | |
import json | |
def put(data, filename): | |
try: | |
jsondata = simplejson.dumps(data, indent=4, skipkeys=True, sort_keys=True) | |
fd = open(filename, 'w') | |
fd.write(jsondata) | |
fd.close() | |
except: |
-- show running queries (pre 9.2) | |
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query | |
FROM pg_stat_activity | |
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' | |
ORDER BY query_start desc; | |
-- show running queries (9.2) | |
SELECT pid, age(clock_timestamp(), query_start), usename, query | |
FROM pg_stat_activity | |
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' |
#!/usr/bin/env bash | |
# bash 4.1.5(1) Linux Ubuntu 10.04 Date : 2019-01-02 | |
# | |
# _______________| noise : ambient Brown noise generator (cf. white noise). | |
# | |
# Usage: noise [minutes=59] [band-pass freq center=1786] [wave] | |
# ^minutes can be any positive integer. | |
# Command "noise 1" will display peak-level meter. | |
# | |
# Dependencies: play (from sox package) |