ostechnix

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

ostechnix

Useful Pandas Snippets

A personal diary of DataFrame munging over the years.

Data Types and Conversion

Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)

ostechnix

#!/usr/bin/env bash

# ------------------------------------------------------------------
# Script Name:   nmcli_remote_ip_changer.sh
# Description:   A Bash Script to Assign IP Address to a 
#                Remote Linux System via SSH using nmcli Command.
# Website:       https://gist.github.com/ostechnix
# Version:       1.0
# Usage:         chmod +x nmcli_remote_ip_changer.sh
#                ./nmcli_remote_ip_changer.sh

ostechnix

import os
from collections import Counter

def get_history_file():
    shell = os.path.basename(os.getenv('SHELL'))

    if shell == 'bash':
        return os.path.expanduser('~/.bash_history'), 'bash'
    elif shell == 'zsh':
        return os.path.expanduser('~/.zsh_history'), 'zsh'

ostechnix

#!/usr/bin/env bash

# ------------------------------------------------------------------
# Script Name:   debupdate.sh
# Description:   An Interactive Bash Shell Script to 
#                Update a Debian-based System
# Website:       https://gist.github.com/ostechnix
# Version:       1.0
# Usage:         sudo ./debupdate.sh
# ------------------------------------------------------------------

ostechnix

#!/usr/bin/env bash

# ------------------------------------------------------------------
# Script Name:   deloldfile.sh
# Description:   Remove all Log Files older than 30 days
# Website:       https://gist.github.com/ostechnix
# Version:       1.0
# Usage:         sudo ./deloldfile.sh
# ------------------------------------------------------------------

ostechnix

#!/usr/bin/env python

# ------------------------------------------------------------------
# Script Name:   txtcwcount.py
# Description:   A Python Script to Count Characters and Words
#                in a Plain Text File.
# Website:       https://gist.github.com/ostechnix
# Version:       1.0
# Usage:         python txtcwcount.py filename
# ------------------------------------------------------------------

ostechnix

#!/usr/bin/env bash

# ------------------------------------------------------------------
# Script Name:   filecp.sh
# Description:   A Bash Script to Copy Files
# Website:       https://gist.github.com/ostechnix
# Version:       1.0
# Usage:         sudo ./filecp.sh
# ------------------------------------------------------------------

ostechnix

#!/usr/bin/env python

# ------------------------------------------------------------------
# Script Name:   showipaddr.py
# Description:   A Python Script to display Private and
#                Public IP address details in Linux and Unix.
# Website:       https://gist.github.com/ostechnix
# Version:       1.0
# Usage:         python showipaddr.py
# ------------------------------------------------------------------

ostechnix

#!/usr/bin/env bash

# ------------------------------------------------------------------
# Script Name:   chrootmnt.sh
# Description:   A Bash script to mount and unmount /dev 
#                inside a chroot environment
# Website:       https://gist.github.com/ostechnix
# Version:       1.0
# Usage:         ./chrootmnt.sh /path/to/chroot command args
# ------------------------------------------------------------------