Ubuntu/Linux Cheat Sheet

Kill process

pkill -9 name*


Chain commands

com1; com2


Recursive delete folder

rm -rf dirPath


Change owner 

sudo chown newOwner file/dir # single file/dir

sudo chown -R newOwner dirpath # recursively


Restart Apache server:

sudo service apache2 restart


Change Anaconda Python environment:

source activate p2/p3/envName


Update and run startup script

gedit ~/.bashrc

source ~/.bashrc

Make Ubuntu terminal auto-complete case insensitive

Run this and restart terminal:

echo "bind 'set completion-ignore-case on'" >> ~/.bashrc

From this SO answer.

Truncate a log file (without deleting it)

truncate --size 0 file.log

Resize partitions including the swap partition

Install and run gparted

sudo apt-get install gparted

Then run from start menu by typing gparted

From: https://askubuntu.com/a/126250/702527

If needed to delete the swap partition, run the steps here to update it’s UUID:


Show directories broken down by file size (recursively and visually)

Install and run qdirstat


Get local IP address

ip route get | awk '{print $NF; exit}'


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