Archives for October 2019

October 31, 2019

Excel Delete Blank Rows

Here’s how to delete blank rows in Excel.

October 31, 2019

If you need to see Bash history with timestamps, use this command.

HISTTIMEFORMAT="%d/%m/%y %T "

To make it permanent, add it to your .bashrc.

echo 'HISTTIMEFORMAT="%d/%m/%y %T "' >> ~/.bashrc
source ~/.bashrc

Timestamps accuracy is retroactively, meaning it will not be accurate for commands performed prior to the history time format being set.

October 30, 2019

Here are two important tar commands on how to create and extract a tar.gz file.

Create a tar gzip file called “project.tar.gz” of a directory called “foo.”

tar -cvzf project.tar.gz foo

Untar the “project.tar.gz” file to a directory called bar.

tar -zxvf project.tar.gz bar