Moving data to S3

ssh into the S3

cd /mnt/externalSD    or so.

scp -r login@localipaddress:/home/me/files ./

works!  Reset the thing to update the list.  Hmmm.

Even better:


sudo sshfs -p 2222 root@192.168.16.20:/ /mnt/phone

Padding to get counter with constant field length

In  [1]: print '%06.0f' % 4
Out [1]: 000004

In  [2]: print '%06.0f' % 401
Out [2]: 000401

Adjusting matplotlib spacing vspace

# These prevent two line titles and axis labels overlapping.
matplotlib.rcParams['figure.subplot.hspace'] = 0.4 # 0.3 default.
matplotlib.rcParams['figure.subplot.wspace'] = 0.3 # 0.2 default.

karsten inflatable tents....

--> FOAM FATAL ERROR: face 1 in patch 0 does not have neighbour cell face: 4(12 4 5 13)

This is was caused by topology errors.  I assumed Z was into the page.   See http://www.openfoam.org/docs/user/blockMesh.php

and number nodes accordingly.

screenshots in linux

Use xev to determine the keycode for printscreen.

Edit ~/.fluxbox/keys to include,

118 :execCommand /home/me/bin/screenshot scr

if keycode 118 is appropriate.  Create the following file, ~/bin/screenshot:

#!/bin/bash

# from http://gentoo-wiki.com/TIP_Make_a_Screenshot_with_PrintScreen_Key

# call as screenshot scr  or  screenshot win  or  screenshot area

# Saves to folder, ~/screenshots/,  making it if required.

# Map to printscreen key, keycode 111 by mapping it to F13 in ~/.xinitrc by adding, 

# xmodmap -e "keycode 111 = F13" before fluxbox is called.

# Then add the line, 'None  F13  :execCommand screenshot scr' to ~/.fluxbox/keys

DIR="${HOME}/screenshots"

DATE="$(date +%Y%m%d@%H%M%S)"

NAME="${DIR}/screenshot-${DATE}.png"

LOG="${DIR}/screenshots.log"

# Check if the dir to store the screenshots exists, else create it: 

if [ ! -d "${DIR}" ]; then mkdir "${DIR}"; fi

# Screenshot a selected window

if [ "$1" = "win" ]; then import "${NAME}"; fi

# Screenshot the entire screen

if [ "$1" = "scr" ]; then import -window root "${NAME}"; fi

# Screenshot a selected area

if [ "$1" = "area" ]; then import "${NAME}"; fi

if [[ $# = 0 ]]; then

  # Display a warning if no area defined

  echo "No screenshot area has been specified. Screenshot not taken."

  echo "${DATE}: No screenshot area has been defined. Screenshot not taken." >> "${LOG}"

else

  # Save the screenshot in the directory and edit the log

  echo "${NAME}" >> "${LOG}"

fi

Thanks blogger, for the mangling.  This was from the gentoo-wiki, 

as mentioned above.

executing shell commands from python

p = subprocess.call(['/bin/bash', '-c', 'ls *.pdf'], stdout=sub.PIPE, stderr=sub.STDOUT))

This is blocking.  For non-blocking use,

p = subprocess.Popen(['/bin/bash', '-c', 'ls *.pdf'], stdout=sub.PIPE, stderr=sub.STDOUT))


The p object has methods for interrogating the output from the command.

Python 2.7 has more options.  For < 2.7 use,

p = subprocess.Popen(['ls', '-l'], stdout=subprocess.PIPE).communicate()[0]

to get the output from the command.