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From advanced Bash tricks to Python gotchas to MySQL tutorials, this blog covers various topics in programming and systems administration. Find out how to get more done and have fun! Keep up with the latest by subscribing to the RSS feed!About the Author
This is the tech blog of Samuel Huckins. You can check out my homepage and other websites below, or send me a message here.-
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Tag Archives: sysadmin
Handy tips for bash scripting: screen reminder and logging
Often I find myself writing simple wrapper scripts for long-running tasks, like migrating a database or performing some repair or optimization process. I mainly want to ensure proper logging is kept in order to determine how long each step takes … Continue reading
Troubleshooting MySQL queries: a useful workflow
Configuring and optimizing MySQL servers, from the underlying hardware to the instance settings on up to the application queries, is a multi-faceted and complex process. Here I’d like to assume you’ve got a well-configured physical server (it’s at least functioning … Continue reading
Improved random password generator script
[EDIT, 2010-11-10:] After being kindly corrected by Chris Jones, I recommend instead using a readily available utility that is more feature rich to boot: pwgen.[/EDIT]
Dealing with “could not create shared memory segment” from postgres on Ubuntu
After installing postgresql-8.4 from the Ubuntu repos on an Ubuntu 9.10 machine, I received the following when the daemon tried to start up: 1234567 * The PostgreSQL server failed to start. Please check the log output: FATAL: could not create shared … Continue reading
Viewing all users on a Linux system
There are a number of widely-used and stable utilities on Linux systems that allow you to view information related to users. You can see who’s logged in with who, get info on a particular user with finger, see who you … Continue reading