Tag Archives: CLI

Dealing with “could not create shared memory segment” from postgres on Ubuntu

Posted on March 22, 2010 by Samuel Huckins

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 →

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Tune MySQL like a pro with MySQLTuner

Posted on March 13, 2010 by Samuel Huckins

I don’t know why I didn’t know about this before (or why I forgot about it, more likely), but I came across MySQLTuner recently and was most pleasantly surprised. It’s a Perl script that only requires your MySQL user and … Continue reading →

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Fun with ASCII art

Posted on December 14, 2009 by Samuel Huckins

No, in fact ASCII art isn’t dead, it’s all the rage. Now that that’s established, check out these handy programs for generating your own ASCII art messages: 1figlet -f smslant Boxes rules. | boxes -d parchment -a hcvc Figure 1. … Continue reading →

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Viewing all users on a Linux system

Posted on October 4, 2009 by Samuel Huckins

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 →

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Get useful image information on the command line

Posted on September 26, 2009 by Samuel Huckins

ImageMagick is an incredible set of programs that allow you to get all sorts of information on image files from the command line, as well as batch edit and generally alter images of many varieties. You can read all about … Continue reading →

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