alexjj

#List unique values in a DataFrame column
pd.unique(df.column_name.ravel())

#Convert Series datatype to numeric, getting rid of any non-numeric values
df['col'] = df['col'].astype(str).convert_objects(convert_numeric=True)

#Grab DataFrame rows where column has certain values
valuelist = ['value1', 'value2', 'value3']
df = df[df.column.isin(value_list)]

alexjj

#!/bin/sh
/usr/sbin/portsnap fetch update && \
/usr/local/sbin/portmaster -L --index-only | egrep '(ew|ort) version|total install'
echo -n "Last update: "
date -r `pkg query %t | sort | tail -n1` "+%Y%m%d"

alexjj

# How to use:
#
# Just place a lock.png in your home folder to overlay whatever you want 

#!/bin/bash
scrot -e 'convert -blur 0x3 $f ~/lockbg.png'
convert -gravity center -composite ~/lockbg.png ~/lock.png ~/lockfinal.png
i3lock -u -i ~/lockfinal.png
rm ~/lockfinal.png ~/lockbg.png

alexjj

# Note

note () {
    # if file doesn't exist, create it
    if [[ ! -f $HOME/.notes ]]; then
        touch "$HOME/.notes"
    fi

    if ! (($#)); then
        # no arguments, print file

alexjj

autoconf
automake
bash
binutils
bison
bzip2
coreutils
cryptsetup
device-mapper
dhcpcd

alexjj

Keybase proof

I hereby claim:

• I am alexjj on github.
• I am alexjj (https://keybase.io/alexjj) on keybase.
• I have a public key whose fingerprint is 8B9B 891B 7CB8 D401 E268 068D 0EDC 6376 B245 2245

To claim this, I am signing this object:

alexjj

zfs list -H -o name -t snapshot | xargs -n1 zfs destroy

alexjj

PIDFILE=/home/alex/radio.pid

if [ -e "$PIDFILE" ] ; then
    PID=`/bin/cat "$PIDFILE"`
    if /bin/kill -0 "$PID" > /dev/null 2>&1 ; then
        exit 0
    fi
 fi

/bin/echo "$$" > $PIDFILE

alexjj

# ex - archive extractor
# usage: ex <file>
ex ()
{
  if [ -f $1 ] ; then
    case $1 in
      *.tar.bz2)   tar xjf $1   ;;
      *.tar.gz)    tar xzf $1   ;;
      *.bz2)       bunzip2 $1   ;;
      *.rar)       unrar x $1     ;;

alexjj

#This script allows an EncFS password to be stored in KDE’s kwallet. This is useful for anyone who has encrypted parts of their #harddrive and want them to be automatically mounted when logging on to KDE. On the first run, a dialogue will allow the password #to be stored in kwallet; subsequently, the kwallet password will be requested (if kwallet is not already authenticated) and then #the encrypted directory will be automatically mounted. The script has not been tested on recent versions of KDE, but it is known #to have worked in versions 4.2 and 4.3.

#Usage
#kdeencfs ROOTDIR MOUNTPOINT
#The call to kdeencfs can be placed in a file located in ~/.kde/Autostart:

# mount my private directories 
kdeencfs /home/ben/.private /home/ben/private
kdeencfs /mnt/data/.secret /home/data/secret