I’m a Systems/Software Engineer in the San Francisco Bay Area. I moved from Columbus, Ohio in 2007 after getting a B.S. in Physics from the Ohio State University. I'm married, and we have dogs.

Under my github account (https://github.com/addumb): I open-sourced python-aliyun in 2014, I have an outdated python 2 project starter template at python-example, and I have a pretty handy “sshec2” command and some others in tools.

The Cost of 4K 60fps video storage, a dad's perspective (2021-2-20)
Mobile App Operability (2020-7-15)
I don't write (2019-10-30)
I moved addumb.com into GitHub pages (2016-3-7)
Quick Debian Backporting (2014-3-10)
Considering different data systems? (2013-11-15)
I Moved Addumb.com into AWS (2013-3-18)
Truth In Distributed Systems (2012-2-24)
Updated: MySQL 5.0 and 5.1 Side-By-Side (2011-3-2)
MySQL Duplicate Key Error - InnoDB or MyISAM? (2011-1-20)
Linux Tip: awesome and synergy for less mouse/keyboard switching (2011-1-12)
vim and bash (2010-12-7)
Linux Tools (2010-10-10)
Linix tip - stderr skips pipes (2010-7-19)
ndislocate - A distributed service locator, written on top of Node.js (2010-6-17)
I want a tattoo (2010-5-17)
Red Hat Enterprise Linux 5.5 released (2010-3-30)
HP ProLiant Linux repositories (2010-3-24)
--> Linux tip 4 - bash history timestamps
Devops (2009-11-25)
While I wait for the locksmith... (2009-10-24)
Linux tip 3 - rsync gotchas (2009-10-22)
Linux tip 2 - read (2009-10-22)
Linux tip - du versus df (2009-10-12)
MySQL Slave Initialization Do's and Dont's (2009-7-5)
What am I doing? (2009-5-25)

Linux tip 4 - bash history timestamps

March 08, 2010

Bash history can be a lifesaver, but when you need it, you usually also need to know when the commands were run. To do this, put the following line in your ~/.bashrc
export HISTTIMEFORMAT="[%x %X] "
This tells bash to prepend lines to .bash_history with the timestamp (commented) so when you run history, the timestamps get pulled in alongside the commands.