briancline

#!/usr/bin/env bash

CAP_WIDTH=320
CAP_HEIGHT=240
CAP_FRAMERATE=30
BIND_HOST=10.0.0.55
BIND_PORT=8080

gst-launch-0.10 v4l2src \
  ! video/x-raw-yuv,width=$CAP_WIDTH,height=$CAP_HEIGHT,framerate=\(fraction\)${CAP_FRAMERATE}/1 \

briancline

#!/usr/bin/env python
"""

This script was written to transcode disk-based backups of my DVDs of the
entire original Dark Shadows television series.

After I purchased the full, expensive-but-worthwhile, 1225-episode, 131-disc
box set from Amazon, I was surprised to see it command such size and weight.
The photograph on Amazon did it no justice. Not to mention the box set is
actually shaped like a coffin, complete with coffin door. So, when you want to

briancline

#!/bin/bash

# swapping-processes.sh
# Lists all processes swapping memory and their pid and swap usage amounts
# - rev 0.4, 2016-12-14, Brian Cline       - remove needless tmpfile usage, honor term widths, simplify
# - rev 0.3, 2012-09-03, Jan Smid          - alignment and intendation, sorting
# - rev 0.2, 2012-08-09, Mikko Rantalainen - pipe the output to "sort -nk3" to get sorted output
# - rev 0.1, 2011-05-27, Erik Ljungstrom   - initial version

print_bar () {

briancline

# df -h /dev/rbd0
Filesystem                 Size  Used Avail Use% Mounted on
/dev/rbd0                  1.5T  1.5T  557M 100% /mnt/media

# rbd info media/media01
rbd image 'media01':
	size 1536 GB in 393216 objects
	order 22 (4096 kB objects)
	block_name_prefix: rb.0.1098.74b0dc51
	format: 1

briancline

Unfortunately, the Cisco AnyConnect client for Mac conflicts with Pow. And by "conflicts", I mean it causes a grey-screen-of-death kernel panic anytime you connect to the VPN and Pow is installed.

As an alternative, there is OpenConnect, a command-line client for Cisco's AnyConnect SSL VPN.

Here's how to get it set up on Mac OS X:

1. OpenConnect can be installed via homebrew:

    brew update
   

brew install openconnect

briancline

Try to imagine waking up to 238,735 instances of the following in your /var/log/syslog:


Jan 21 06:26:27 file02 kernel: [2345317.437153] end_request: I/O error, dev rbd3, sector 1283882888
Jan 21 06:26:27 file02 kernel: [2345317.437196] XFS (rbd3): page discard on page ffffea0004e52920, inode 0x21805b, offset 713658368.
Jan 21 06:26:27 file02 kernel: [2345317.456204] ffff8801e954e000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
Jan 21 06:26:27 file02 kernel: [2345317.463896] XFS (rbd3): Internal error xfs_alloc_read_agf at line 2138 of file /build/linux-rrsxby/linux-3.2.51/fs/xfs/xfs_alloc.c.  Caller 0xffffffffa04ff6d3
Jan 21 06:26:27 file02 kernel: [2345317.463898]
Jan 21 06:26:27 file02 kernel: [2345317.487061] Pid: 29356, comm: flush-250:0 Tainted: G         C   3.2.0-4-amd64 #1 Debian 3.2.51-1
Jan 21 06:26:27 file02 kernel: [2345317.487064] Call Trace:

briancline

file02.ads1:~% date
Wed Jan 22 09:23:42 CST 2014

file02.ads1:~% ssh root@heap01 'df -h $(mount | awk "/osd.ceph-/ {print \$3}" | sort)'
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdb1       2.8T  1.6T  1.2T  57% /var/lib/ceph/osd/ceph-0
/dev/sdc1       2.8T  1.6T  1.2T  59% /var/lib/ceph/osd/ceph-4
/dev/sdd1       2.8T  2.1T  705G  75% /var/lib/ceph/osd/ceph-6

file02.ads1:~% ssh root@heap02 'df -h $(mount | awk "/osd.ceph-/ {print \$3}" | sort)'

briancline

# ~/.config/fish/commands/gitignore.fish

function gitignore
	if test (count $argv) -lt 1
		echo "Usage: gitignore <language name>"
		echo ""
		echo "Downloads a handy pre-made gitignore file for a given language."
		echo "Full list available at https://github.com/github/gitignore."
		return 1
	end

briancline

discovery:~% ssh heap01 'df -h | grep osd'
/dev/sdb1       2.8T  2.3T  463G  84% /var/lib/ceph/osd/ceph-0
/dev/sdc1       2.8T  2.1T  646G  77% /var/lib/ceph/osd/ceph-4
/dev/sdd1       2.8T  2.3T  521G  82% /var/lib/ceph/osd/ceph-6

discovery:~% ssh heap02 'df -h | grep osd'
/dev/sdb1       2.8T  2.7T   53G  99% /var/lib/ceph/osd/ceph-1
/dev/sdc1       1.9T  1.9T  2.4G 100% /var/lib/ceph/osd/ceph-3
/dev/sdd1       2.8T  2.7T   80G  98% /var/lib/ceph/osd/ceph-5
/dev/sde1       2.8T  929G  1.9T  34% /var/lib/ceph/osd/ceph-2

briancline

#!/usr/bin/env bash
## You can use this to crush images in parallel via the shell alone.
## Make sure the GNU parallel utility is installed:
## - apt-get install parallel
## - yum install parallel

## For a simple example, run the following to simulate with echo and sleep:
## ls --color=no /usr/share/doc | parallel -j 16 --gnu -i -- 'sh -c "sleep 0.5 && echo {}"'
##   (-i tells parallel to substitute a filename when it sees {} in the command, rather than
##    simply appending it to the command, as it would normally do if you omit -i)